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08/14/21

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.y=6-3/2x, y=0, x=1, x=2 ; about the x-axisV=?sketch the region sketch... more

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Calc Math Calculus Integration

08/13/21

Finding area of a region on graph using integration.

Consider the following.y = x2y = 12 − x(a) Find the area of the region by integrating with respect to x.(b) Find the area of the region by integrating with respect to y.Any help will be very... more

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Calc Algebra 1 Algebra 2 Calculus

08/09/21

You are designing a lamp reflector for a spotlight.

You are designing a lamp reflector for a spotlight. If you want to placc the lamp 50cm from the vertex of the parabolic reflector, find the equation of the parabola that describes the shape of the... more

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Calc Algebra 1 Algebra 2 Calculus

08/09/21

You are designing a lamp reflector for a spotlight.

You are designing a lamp reflector for a spotlight. If you want to placc the lamp 50cm from the vertex of the parabolic reflector, find the equation of the parabola that describes the shape of the... more

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Calc Calculus Statistics Statistics

08/09/21

7.10: What fraction of the variability in potassium is accounted for by the amount of fiber that servings contain?

The correlation between a cereal's fiber and potassium contents is r=0.892. What fraction of the variability in potassium is accounted for by the amount of fiber that servings... more

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Calc Statistics Statistics Stats

08/08/21

If he leaves class late, there is a 46% chance that he will miss his train. What is the probability that he gets out of class late and misses the train?

A student figures that he has a 51% chance of being let out of class late. If he leaves class late, there is a 46% chance that he will miss his train. What is the probability that he gets out of... more

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Calc Statistics Statistics Stats

08/08/21

If he leaves class late, there is a 46% chance that he will miss his train. What is the probability that he gets out of class late and misses the train?

A student figures that he has a 51% chance of being let out of class late. If he leaves class late, there is a 46% chance that he will miss his train. What is the probability that he gets out of... more

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Answers •1

Calc Calculus Statistics Statistics

08/08/21

14.3: What are the mean and standard deviation of his total weekly salaries?

An employer pays a mean salary for a 5-day workweek of $1050 with a standard deviation of $136. On the weekends, his salary expenses have a mean of $350 with a standard deviation of $60. What... more

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Calc Math Calculus Derivative

08/08/21

Optimization word problem

A rectangular page is to contains 99 square inches of print. The margins on each side are 1 inch. Find the dimensions of the page such that the least amount of paper is used.larger value = ?smaller... more

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Calc Math Calculus

08/07/21

A solid is formed by rotating the region bounded by y = x − x^2 and y = 0 about the line x = 2 . Use the shell method to find the volume of the solid.

Use shell method to find volume.

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Calc Calculus Calculus Statistics

08/04/21

c15.9: A basketball player has made 80% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he does the following.

A basketball player has made 80% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he does the following.a) Misses for the... more

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Calc Calculus Calculus Statistics

08/04/21

c15.9: A basketball player has made 80% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he does the following.

A basketball player has made 80% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he does the following.a) Misses for the... more

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Calc Calculus Statistics Statistics

08/04/21

C17.4: . The sample showed the average loss was $8601 with a standard deviation of $1405

The housing market has recovered slowly from the economic crisis of 2008. Recently, in one large community, realtors randomly sampled 48 bids from potential buyers to estimate the average loss in... more

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Calc Calculus Statistics Statistics

08/04/21

C21.7: Find a 95% confidence interval for this difference and interpret it in context.

In analyzing the city and highway fuel efficiencies of many cars and trucks, the mean difference in fuel efficiencies for the 632 vehicles was 7.36 mpg with a standard deviation of 2.59 mpg. Find... more

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Calc Calculus Statistics Statistics

07/29/21

C13: What is the probability that a randomly selected person in the country enjoys cooking or shopping or both?

Fifty-four percent of people in a certain country like to cook and 52% of people in the country like to shop,while 22% enjoy both activities. What is the probability that a randomly selected... more

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Calc Calculus Statistics Statistics

07/29/21

Suppose that 20% of people have a dog, 32% of people have a cat, and 8% of people own both. What is the probability that someone owns a dog or a cat?

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Calc Business Calculus Statistics

07/29/21

In which month is it more unusual to have a day with a high temperature of 55°? Explain.

A town's January high temperatures average 37°F with a standard deviation of 10°, while in July the mean high temperature is 77° and the standard deviation is 10°. In which month is it more... more

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Calc Business Calculus Statistics

07/29/21

In which month is it more unusual to have a day with a high temperature of 55°? Explain.

A town's January high temperatures average 37°F with a standard deviation of 10°, while in July the mean high temperature is 77° and the standard deviation is 10°. In which month is it more... more

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Calc Calculus Statistics Statistics

07/29/21

C5.5: Suppose that the weights of all such animals can be described by a Normal model with a standard deviation of 98 pounds.

A livestock cooperative reports that the mean weight of yearling Angus steers is 1147 pounds. Suppose that the weights of all such animals can be described by a Normal model with a standard... more

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Calc Math Calculus Mathematics

07/29/21

Find a unit vector that is orthogonal to both →u= ⟨6,−3,−8⟩ and v= ⟨−7,10,0⟩.

Note: This question is very sensitive to rounding errors. Enter an exact answer only.

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Calc Math Calculus Mathematics

07/29/21

Let →a = <−4,−2,−3> and →b= <−2,0,−5>. Find (−2→a) − (2→b).

Let →a = <−4,−2,−3> and →b= <−2,0,−5>. Find (−2→a) − (2→b).<___ , ___ , ___>

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Calc Calculus Physics Precalculus

07/19/21

Please help! Calculus problem

4. A motor is spinning a circular disk with a diameter of 2.5 inches at a rate of 7200 RPM (revolutions per minute). If the motor and disk suddenly stop spinning at exactly 0.01 seconds, what the... more

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Calc Calculus Physics Precalculus

07/09/21

how many meters will it travel

A particle that moves along a straight line has velocity v(t) = t^(2)e^(−3t) meters per second after t seconds. How many meters will it travel during the first t seconds (from time=0 to time=t)?

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Calc Calculus Physics Precalculus

07/09/21

how many meters will it travel

A particle that moves along a straight line has velocity v(t) = t^(2)e^(−3t) meters per second after t seconds. How many meters will it travel during the first t seconds (from time=0 to time=t)?

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Calc Calculus Precalculus

07/08/21

feet per second with a rotating light

A rotating light is located 19 feet from a wall. The light completes one rotation every 5 seconds. Find the rate (feet per second) at which the light projected onto the wall is moving along the... more

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Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line.

Finding area of a region on graph using integration.

You are designing a lamp reflector for a spotlight.

You are designing a lamp reflector for a spotlight.

7.10: What fraction of the variability in potassium is accounted for by the amount of fiber that servings​ contain?

If he leaves class​ late, there is a 46​% chance that he will miss his train. What is the probability that he gets out of class late and misses the​ train?

If he leaves class​ late, there is a 46​% chance that he will miss his train. What is the probability that he gets out of class late and misses the​ train?

14.3: What are the mean and standard deviation of his total weekly​ salaries?

Optimization word problem

A solid is formed by rotating the region bounded by y = x − x^2 and y = 0 about the line x = 2 . Use the shell method to find the volume of the solid.

c15.9: A basketball player has made 80​% of his foul shots during the season. Assuming the shots are​ independent, find the probability that in​ tonight's game he does the following.

c15.9: A basketball player has made 80​% of his foul shots during the season. Assuming the shots are​ independent, find the probability that in​ tonight's game he does the following.

C17.4: . The sample showed the average loss was ​$8601 with a standard deviation of ​$1405

C21.7: Find a​ 95% confidence interval for this difference and interpret it in context.

C13: What is the probability that a randomly selected person in the country enjoys cooking or shopping or​ both?

Suppose that 20​% of people have a dog​, 32​% of people have a cat​, and 8​% of people own both. What is the probability that someone owns a dog or a cat​?

In which month is it more unusual to have a day with a high temperature of 55°​? Explain.

In which month is it more unusual to have a day with a high temperature of 55°​? Explain.

C5.5: Suppose that the weights of all such animals can be described by a Normal model with a standard deviation of 98 pounds.

Find a unit vector that is orthogonal to both →u= ⟨6,−3,−8⟩ and v= ⟨−7,10,0⟩.

Let →a = <−4,−2,−3> and →b= <−2,0,−5>. Find (−2→a) − (2→b).

Please help! Calculus problem

how many meters will it travel

how many meters will it travel

feet per second with a rotating light

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7.10: What fraction of the variability in potassium is accounted for by the amount of fiber that servings contain?

If he leaves class late, there is a 46% chance that he will miss his train. What is the probability that he gets out of class late and misses the train?

If he leaves class late, there is a 46% chance that he will miss his train. What is the probability that he gets out of class late and misses the train?

14.3: What are the mean and standard deviation of his total weekly salaries?

c15.9: A basketball player has made 80% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he does the following.

c15.9: A basketball player has made 80% of his foul shots during the season. Assuming the shots are independent, find the probability that in tonight's game he does the following.

C17.4: . The sample showed the average loss was $8601 with a standard deviation of $1405

C21.7: Find a 95% confidence interval for this difference and interpret it in context.

C13: What is the probability that a randomly selected person in the country enjoys cooking or shopping or both?

Suppose that 20% of people have a dog, 32% of people have a cat, and 8% of people own both. What is the probability that someone owns a dog or a cat?

In which month is it more unusual to have a day with a high temperature of 55°? Explain.

In which month is it more unusual to have a day with a high temperature of 55°? Explain.