FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. UNIVERSITY MATH HELP University Math Help / College Math Help / Masters Degrees in Mathematics / Doctorate in Mathematics / Computer Science Math / Calculus / Advanced Algebra / Discrete Math / Differential Geometry / Differential Equations / Natural Logarithm / Advanced Statistics and Probability / Number Theory / Advanced Applied Math / / Business Math / University Physics / University Chemistry TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

AREA OF ROSE LEAF

Find the area inside one leaf of the rose: r = 4 sin (5θ) Please help! Click to expand the sine functin is equal to zero at points of the form π ⋅ k where k ∈ Z. so setting the argument equal to the above we get. 5 θ = π ⋅ k θ = π ⋅ k 5. so our limits of integration are k=0 and k=1 0 and π 5. A = 1 2 ∫ IS IT POSSIBLE TO FIND ASYMPTOTES WITH DY/DX? Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2 WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here.

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. UNIVERSITY MATH HELP University Math Help / College Math Help / Masters Degrees in Mathematics / Doctorate in Mathematics / Computer Science Math / Calculus / Advanced Algebra / Discrete Math / Differential Geometry / Differential Equations / Natural Logarithm / Advanced Statistics and Probability / Number Theory / Advanced Applied Math / / Business Math / University Physics / University Chemistry TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

AREA OF ROSE LEAF

Find the area inside one leaf of the rose: r = 4 sin (5θ) Please help! Click to expand the sine functin is equal to zero at points of the form π ⋅ k where k ∈ Z. so setting the argument equal to the above we get. 5 θ = π ⋅ k θ = π ⋅ k 5. so our limits of integration are k=0 and k=1 0 and π 5. A = 1 2 ∫ IS IT POSSIBLE TO FIND ASYMPTOTES WITH DY/DX? Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2 WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists.

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

INTRODUCTION

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and CALCULUS: RELATED RATES Any body know how to start this problem? At the Skywalker moisture farm on the desert planet Tatooine, there are 24 moisture processors, with an average yield per processor of 300 cubits of moisture. Research conducted at Mos Eisley University concludes that when an additional processor is USING DIFFERENTIALS TO APPROXIMATE The yknow 25^1/2 = 5 so you assume that 27^1/2 must be slightly larger than 5. A. Use differentials to approximate the square root of 27. Step 1. f (x) = x^1/2, x=25, dx=2. Calculate dy = f ' (x) dx and evaluate it. In addition to doing it for 27, I have to do it for 21,

39, and 110.

FINDING REVOLVING VOLUMES I've been able to calculate a lot of my homework involving finding the volume of a revolving function around either the x or y axis. However, this one seemed to pose a challenge for me. Find the volume of the solid formed by rotating the region enclosed by about the -axis. If

anyone could

DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

INTEGRATING FACTOR FOR (X^2 + Y)DX Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. UNIVERSITY MATH HELP University Math Help / College Math Help / Masters Degrees in Mathematics / Doctorate in Mathematics / Computer Science Math / Calculus / Advanced Algebra / Discrete Math / Differential Geometry / Differential Equations / Natural Logarithm / Advanced Statistics and Probability / Number Theory / Advanced Applied Math / / Business Math / University Physics / University Chemistry TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

AREA OF ROSE LEAF

Find the area inside one leaf of the rose: r = 4 sin (5θ) Please help! Click to expand the sine functin is equal to zero at points of the form π ⋅ k where k ∈ Z. so setting the argument equal to the above we get. 5 θ = π ⋅ k θ = π ⋅ k 5. so our limits of integration are k=0 and k=1 0 and π 5. A = 1 2 ∫ IS IT POSSIBLE TO FIND ASYMPTOTES WITH DY/DX? Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2 WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here.

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. UNIVERSITY MATH HELP University Math Help / College Math Help / Masters Degrees in Mathematics / Doctorate in Mathematics / Computer Science Math / Calculus / Advanced Algebra / Discrete Math / Differential Geometry / Differential Equations / Natural Logarithm / Advanced Statistics and Probability / Number Theory / Advanced Applied Math / / Business Math / University Physics / University Chemistry TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

AREA OF ROSE LEAF

Find the area inside one leaf of the rose: r = 4 sin (5θ) Please help! Click to expand the sine functin is equal to zero at points of the form π ⋅ k where k ∈ Z. so setting the argument equal to the above we get. 5 θ = π ⋅ k θ = π ⋅ k 5. so our limits of integration are k=0 and k=1 0 and π 5. A = 1 2 ∫ IS IT POSSIBLE TO FIND ASYMPTOTES WITH DY/DX? Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2 WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists.

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

INTRODUCTION

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and CALCULUS: RELATED RATES Any body know how to start this problem? At the Skywalker moisture farm on the desert planet Tatooine, there are 24 moisture processors, with an average yield per processor of 300 cubits of moisture. Research conducted at Mos Eisley University concludes that when an additional processor is USING DIFFERENTIALS TO APPROXIMATE The yknow 25^1/2 = 5 so you assume that 27^1/2 must be slightly larger than 5. A. Use differentials to approximate the square root of 27. Step 1. f (x) = x^1/2, x=25, dx=2. Calculate dy = f ' (x) dx and evaluate it. In addition to doing it for 27, I have to do it for 21,

39, and 110.

FINDING REVOLVING VOLUMES I've been able to calculate a lot of my homework involving finding the volume of a revolving function around either the x or y axis. However, this one seemed to pose a challenge for me. Find the volume of the solid formed by rotating the region enclosed by about the -axis. If

anyone could

DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

INTEGRATING FACTOR FOR (X^2 + Y)DX Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks PROVE THESE TWO GCD (GREATEST COMMON DIVISOR) Hi, thanks for taking the time to look in this thread. Here are the GCD (great common divisior) questions that need proof: 1. Let a and b be integers. Prove that gcd(a, b)|gcd(a + b, a − b). 2. Let a, b, c be integers. Suppose that gcd(a, b) = 1 and c|(a+b). Prove that gcd(a,

c) = 1.

COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? ARBITARY ARRANGEMENT ynj. Twelve basketball players whose uniforms are numbered 1 through 12 stand in a line in an arbitrary arrangement. prove that there must be three consecutive players in the line such that the sum of the numbers of their uniforms is at least 20. Click to expand since 78 ÷ 4 = 19.5 and the sum of the numbers in (1,2,3), (4,5,6), (7,8,9 DIMENSIONS AND MATERIALS OF A CAPACITOR The below question is coming up in a exam of mine soon, does anyone have the answer? Q. Describe with the aid of diagrams how the dimensions and materials of a WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here.

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks PROVE THESE TWO GCD (GREATEST COMMON DIVISOR) Hi, thanks for taking the time to look in this thread. Here are the GCD (great common divisior) questions that need proof: 1. Let a and b be integers. Prove that gcd(a, b)|gcd(a + b, a − b). 2. Let a, b, c be integers. Suppose that gcd(a, b) = 1 and c|(a+b). Prove that gcd(a,

c) = 1.

COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? ARBITARY ARRANGEMENT ynj. Twelve basketball players whose uniforms are numbered 1 through 12 stand in a line in an arbitrary arrangement. prove that there must be three consecutive players in the line such that the sum of the numbers of their uniforms is at least 20. Click to expand since 78 ÷ 4 = 19.5 and the sum of the numbers in (1,2,3), (4,5,6), (7,8,9 DIMENSIONS AND MATERIALS OF A CAPACITOR The below question is coming up in a exam of mine soon, does anyone have the answer? Q. Describe with the aid of diagrams how the dimensions and materials of a WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here. TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

TIME SERIES ANALYSIS AND FORECASTING Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? CALCULUS: RELATED RATES Any body know how to start this problem? At the Skywalker moisture farm on the desert planet Tatooine, there are 24 moisture processors, with an average yield per processor of 300 cubits of moisture. Research conducted at Mos Eisley University concludes that when an additional processor is INTEGRATING FACTOR FOR (X^2 + Y)DX Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. USING DIFFERENTIALS TO APPROXIMATE The yknow 25^1/2 = 5 so you assume that 27^1/2 must be slightly larger than 5. A. Use differentials to approximate the square root of 27. Step 1. f (x) = x^1/2, x=25, dx=2. Calculate dy = f ' (x) dx and evaluate it. In addition to doing it for 27, I have to do it for 21,

39, and 110.

DIMENSIONS AND MATERIALS OF A CAPACITOR The below question is coming up in a exam of mine soon, does anyone have the answer? Q. Describe with the aid of diagrams how the dimensions and materials of a

DOUBLE ANGLES

How would I simplify: (tan22.5)/1 - tan^2(22.5) And also: let csc t = (square root)5 with t in QII and find sec 2t I have no idea where to

start

WHAT IS THE “OVERLAPPING PROBABILITY”? I am having a geological question, which is relevant to the statistics. The problem can be generalised as below. Assuming a number of (n) circles with radius r are drawn onto a piece of paper with an area of (A), there will be some circles overlapping with others, and some isolated. Is there an

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks PROVE THESE TWO GCD (GREATEST COMMON DIVISOR) Hi, thanks for taking the time to look in this thread. Here are the GCD (great common divisior) questions that need proof: 1. Let a and b be integers. Prove that gcd(a, b)|gcd(a + b, a − b). 2. Let a, b, c be integers. Suppose that gcd(a, b) = 1 and c|(a+b). Prove that gcd(a,

c) = 1.

COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? ARBITARY ARRANGEMENT ynj. Twelve basketball players whose uniforms are numbered 1 through 12 stand in a line in an arbitrary arrangement. prove that there must be three consecutive players in the line such that the sum of the numbers of their uniforms is at least 20. Click to expand since 78 ÷ 4 = 19.5 and the sum of the numbers in (1,2,3), (4,5,6), (7,8,9 DIMENSIONS AND MATERIALS OF A CAPACITOR The below question is coming up in a exam of mine soon, does anyone have the answer? Q. Describe with the aid of diagrams how the dimensions and materials of a WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here.

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks PROVE THESE TWO GCD (GREATEST COMMON DIVISOR) Hi, thanks for taking the time to look in this thread. Here are the GCD (great common divisior) questions that need proof: 1. Let a and b be integers. Prove that gcd(a, b)|gcd(a + b, a − b). 2. Let a, b, c be integers. Suppose that gcd(a, b) = 1 and c|(a+b). Prove that gcd(a,

c) = 1.

COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? ARBITARY ARRANGEMENT ynj. Twelve basketball players whose uniforms are numbered 1 through 12 stand in a line in an arbitrary arrangement. prove that there must be three consecutive players in the line such that the sum of the numbers of their uniforms is at least 20. Click to expand since 78 ÷ 4 = 19.5 and the sum of the numbers in (1,2,3), (4,5,6), (7,8,9 DIMENSIONS AND MATERIALS OF A CAPACITOR The below question is coming up in a exam of mine soon, does anyone have the answer? Q. Describe with the aid of diagrams how the dimensions and materials of a WWW.MATHHELPFORUM.COM Moved Permanently. The document has moved here. TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

TIME SERIES ANALYSIS AND FORECASTING Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? CALCULUS: RELATED RATES Any body know how to start this problem? At the Skywalker moisture farm on the desert planet Tatooine, there are 24 moisture processors, with an average yield per processor of 300 cubits of moisture. Research conducted at Mos Eisley University concludes that when an additional processor is INTEGRATING FACTOR FOR (X^2 + Y)DX Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. USING DIFFERENTIALS TO APPROXIMATE The yknow 25^1/2 = 5 so you assume that 27^1/2 must be slightly larger than 5. A. Use differentials to approximate the square root of 27. Step 1. f (x) = x^1/2, x=25, dx=2. Calculate dy = f ' (x) dx and evaluate it. In addition to doing it for 27, I have to do it for 21,

39, and 110.

DIMENSIONS AND MATERIALS OF A CAPACITOR The below question is coming up in a exam of mine soon, does anyone have the answer? Q. Describe with the aid of diagrams how the dimensions and materials of a

DOUBLE ANGLES

How would I simplify: (tan22.5)/1 - tan^2(22.5) And also: let csc t = (square root)5 with t in QII and find sec 2t I have no idea where to

start

WHAT IS THE “OVERLAPPING PROBABILITY”? I am having a geological question, which is relevant to the statistics. The problem can be generalised as below. Assuming a number of (n) circles with radius r are drawn onto a piece of paper with an area of (A), there will be some circles overlapping with others, and some isolated. Is there an

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? OPTIMIZATION PROBLEM An express railroad train between two cities carries 10,000 passengers per year for a one-way fare of 50 dollars. If the fare goes up, ridership will decrease because more people will drive. It is estimated that each 10 dollar increase in the fare will result in 1000 fewer passengers per year COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left.

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

IS IT POSSIBLE TO FIND ASYMPTOTES WITH DY/DX? Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

BINOMIAL DISTRIBUTION, USING CUMULATIVE DISTRIBUTION The random variable X~B( 50, 0.40). Find a) the largest value of k, such that P(X\\leq k)< 0.05 B)the smallest number r, such that P(X>r) r, and the tables only give values for P(X\\leq x ) Can someone show me how to work this out? Thanks. FIND THE GENERAL SOLUTION TO THE EQUATION 2U_X + U_XY = 0 Since only differentiation with respect to y is involved, you can solve that as the ODE \(\displaystyle \frac{dv}{dy}= -2y\). Of course, the "constant" may be a function of x.

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ? OPTIMIZATION PROBLEM An express railroad train between two cities carries 10,000 passengers per year for a one-way fare of 50 dollars. If the fare goes up, ridership will decrease because more people will drive. It is estimated that each 10 dollar increase in the fare will result in 1000 fewer passengers per year COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left.

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

IS IT POSSIBLE TO FIND ASYMPTOTES WITH DY/DX? Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

BINOMIAL DISTRIBUTION, USING CUMULATIVE DISTRIBUTION The random variable X~B( 50, 0.40). Find a) the largest value of k, such that P(X\\leq k)< 0.05 B)the smallest number r, such that P(X>r) r, and the tables only give values for P(X\\leq x ) Can someone show me how to work this out? Thanks. FIND THE GENERAL SOLUTION TO THE EQUATION 2U_X + U_XY = 0 Since only differentiation with respect to y is involved, you can solve that as the ODE \(\displaystyle \frac{dv}{dy}= -2y\). Of course, the "constant" may be a function of x. PRE-UNIVERSITY MATH HELP Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and

SAND PROBLEM

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. WHAT STATISTICAL TEST TO USE Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. INTEGRATING FACTOR FOR (X^2 + Y)DX Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. USING DIFFERENTIALS TO APPROXIMATE I'm going to write this problem word for word because I'm not sure how else to describe it. Q1. For y=f(x), differentials are used to approximate the change in y for a given change in x. Suppose you have misplaced your calculator and need a decent approximation of the square root of 27. The CALCULUS: RELATED RATES Any body know how to start this problem? At the Skywalker moisture farm on the desert planet Tatooine, there are 24 moisture processors, with an average yield per processor of 300 cubits of moisture. Research conducted at Mos Eisley University concludes that when an additional processor is IDK HOW TO SOLVE THIS PROBLEM Hi to everyone, do you know the "One World Trade Center"? Well, i've to calculate two things about it: -The volume, according to its particular shape -The surface of the glass plates which cover the whole structure Searching on internet i found two dimensions: 1) Total

height without

AREA OF REGION BOUNDED BY CURVES...WHERE AM I GOING WRONG The point of intersection for x would be 4 so my bounds would be 0 and 4 since the absolute value makes one bound 0. Then I subtract the two, sincd 2x is the upper It'd be 2x-(x^2-8) which becomes 2x-x^2+8 and after integration it would be 2x^2/2 FINDING REVOLVING VOLUMES I've been able to calculate a lot of my homework involving finding the volume of a revolving function around either the x or y axis. However, this one seemed to pose a challenge for me. Find the volume of the solid formed by rotating the region enclosed by about the -axis. If

anyone could

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. UNIVERSITY MATH HELP University Math Help / College Math Help / Masters Degrees in Mathematics / Doctorate in Mathematics / Computer Science Math / Calculus / Advanced Algebra / Discrete Math / Differential Geometry / Differential Equations / Natural Logarithm / Advanced Statistics and Probability / Number Theory / Advanced Applied Math / / Business Math / University Physics / University Chemistry DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ?

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. OPTIMIZATION PROBLEM An express railroad train between two cities carries 10,000 passengers per year for a one-way fare of 50 dollars. If the fare goes up, ridership will decrease because more people will drive. It is estimated that each 10 dollar increase in the fare will result in 1000 fewer passengers per year DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

AREA OF ROSE LEAF

Find the area inside one leaf of the rose: r = 4 sin (5θ) Please help! Click to expand the sine functin is equal to zero at points of the form π ⋅ k where k ∈ Z. so setting the argument equal to the above we get. 5 θ = π ⋅ k θ = π ⋅ k 5. so our limits of integration are k=0 and k=1 0 and π 5. A = 1 2 ∫ FIND THE GENERAL SOLUTION TO THE EQUATION 2U_X + U_XY = 0 where u_x is u(x,y) differentiated with respect to x and u_xy is u(x,y) twice differentiated with respect to x and with respect to y How would I go about solving this? Thanks for any help.

FREE MATH HELP

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. UNIVERSITY MATH HELP University Math Help / College Math Help / Masters Degrees in Mathematics / Doctorate in Mathematics / Computer Science Math / Calculus / Advanced Algebra / Discrete Math / Differential Geometry / Differential Equations / Natural Logarithm / Advanced Statistics and Probability / Number Theory / Advanced Applied Math / / Business Math / University Physics / University Chemistry DOES ANY KNOW HOW TO ANSWER THIS QUESTION? A canoeist paddles 2.8 km in a N34*E direction, and then, 5.2 km in a N65* W direction. What distance and in which direction should a second canoeist paddle to the same location? Thanks BREAK EVEN POINT ( URGENT ) Toys 4 u manufactures a toy that it sells for $30 each. The variable cost per toy is $10 and the fixed cost for this product line are $100 000 per year . a) what is the break even point in units? b) what is the break even sales revenue ?

VECTOR (COLLINEAR)

After many years of teaching vector geometry, I well understand the confusion students (and sorry to say many teachers) have with vectors.This is a difficult notion to accept: there are finitely points, no three of which are colinear, that that determine the same

vector.

COMPARING PERCENTS, DECIMALS, AND FRACTIONS A) To change percent to decimals: Percent is "per century" or per hundred. So 62% = 62/100 = 0.62 Or, as short cut, move the decimal point 2 places to the left. OPTIMIZATION PROBLEM An express railroad train between two cities carries 10,000 passengers per year for a one-way fare of 50 dollars. If the fare goes up, ridership will decrease because more people will drive. It is estimated that each 10 dollar increase in the fare will result in 1000 fewer passengers per year DIFFICULT RELATIVE RATES PROBLEM A hunter is at a point on a straight river bank running east-west. He wants to get to his cabin located 3 miles north and 8 miles west. He can travel 5 mph on the river but only 2 mph on the rocky land. How far upriver should he go in order to reach the cabin in minimum time?

I assume the

AREA OF ROSE LEAF

Find the area inside one leaf of the rose: r = 4 sin (5θ) Please help! Click to expand the sine functin is equal to zero at points of the form π ⋅ k where k ∈ Z. so setting the argument equal to the above we get. 5 θ = π ⋅ k θ = π ⋅ k 5. so our limits of integration are k=0 and k=1 0 and π 5. A = 1 2 ∫ FIND THE GENERAL SOLUTION TO THE EQUATION 2U_X + U_XY = 0 where u_x is u(x,y) differentiated with respect to x and u_xy is u(x,y) twice differentiated with respect to x and with respect to y How would I go about solving this? Thanks for any help. TRENDING DISCUSSIONS Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and OPTIMIZATION PROBLEM An express railroad train between two cities carries 10,000 passengers per year for a one-way fare of 50 dollars. If the fare goes up, ridership will decrease because more people will drive. It is estimated that each 10 dollar increase in the fare will result in 1000 fewer passengers per year

SAND PROBLEM

Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. CALCULUS: RELATED RATES Any body know how to start this problem? At the Skywalker moisture farm on the desert planet Tatooine, there are 24 moisture processors, with an average yield per processor of 300 cubits of moisture. Research conducted at Mos Eisley University concludes that when an additional processor is IDK HOW TO SOLVE THIS PROBLEM Well, i've to calculate two things about it: -The volume, according to its particular shape. -The surface of the glass plates which cover the whole structure. Searching on internet i found two dimensions: 1) Total height without antenna: 417 m. 2) Cubic base dimensions: 61 m, for every side. Thanks for your attention, I hope you will see this INTEGRATING FACTOR FOR (X^2 + Y)DX Math Help Forum. Mathematics is concerned with numbers, data, quantity, structure, space, models, and change. Founded in 2005, Math Help Forum is dedicated to free math help and math discussions, and our math community welcomes students, teachers, educators, professors, mathematicians, engineers, and scientists. USING DIFFERENTIALS TO APPROXIMATE The yknow 25^1/2 = 5 so you assume that 27^1/2 must be slightly larger than 5. A. Use differentials to approximate the square root of 27. Step 1. f (x) = x^1/2, x=25, dx=2. Calculate dy = f ' (x) dx and evaluate it. In addition to doing it for 27, I have to do it for 21,

39, and 110.

ARBITARY ARRANGEMENT ynj. Twelve basketball players whose uniforms are numbered 1 through 12 stand in a line in an arbitrary arrangement. prove that there must be three consecutive players in the line such that the sum of the numbers of their uniforms is at least 20. Click to expand since 78 ÷ 4 = 19.5 and the sum of the numbers in (1,2,3), (4,5,6), (7,8,9

WATER PIPE...

Came across this annoying problem: Determine amt. (gal.) of water per hr. delivered through a 6" pipe, inside diameter 6.065". Water travels at 10' per sec. 1 gallon = 231 cu. in. Anybody understand it? I ended up with ~54,000 gal. per hr.

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