Exam 7: Additional Topics in Integration

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Evaluate the following improper integral whenever it is convergent. ​ Evaluate the following improper integral whenever it is convergent. ​   ​

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The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​ The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​   ​ Where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of   dollars per year. Hint:  ​ Where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​   ​ Where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of   dollars per year. Hint:  dollars per year. Hint: The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​   ​ Where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of   dollars per year. Hint:

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Find the indefinite integral. ​ Find the indefinite integral. ​   ​Hint: First, make the substitution u= x+4 ; then, integrate by parts. ​Hint: First, make the substitution u= x+4 ; then, integrate by parts.

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Evaluate the following improper integral whenever it is convergent. ​ Evaluate the following improper integral whenever it is convergent. ​   ​ Enter divergent if the integral is divergent. ​ Enter divergent if the integral is divergent.

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Based on data collected during an experiment, a biologist found that the number of fruit flies (Drosophila) with a limited food supply could be approximated by the exponential model ​ Based on data collected during an experiment, a biologist found that the number of fruit flies (Drosophila) with a limited food supply could be approximated by the exponential model ​   ​ where t denotes the number of days since the beginning of the experiment. Find the average number of fruit flies in the colony in the first 12 days of the experiment and in the first 22 days. Please round your answers to the nearest integer. ​ The average number of fruit flies in the first 12 days : __________ ​ The average number of fruit flies in the first 22 days : __________ ​ where t denotes the number of days since the beginning of the experiment. Find the average number of fruit flies in the colony in the first 12 days of the experiment and in the first 22 days. Please round your answers to the nearest integer. ​ The average number of fruit flies in the first 12 days : __________ ​ The average number of fruit flies in the first 22 days : __________

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If f is a polynomial function of degree more than 3, then the approximation If f is a polynomial function of degree more than 3, then the approximation   using Simpson's rule is exact. using Simpson's rule is exact.

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Evaluate the following improper integral whenever it is convergent. ​ Evaluate the following improper integral whenever it is convergent. ​   ​

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Use the formula ​ Use the formula ​   ​ to find the integral. ​  ​ to find the integral. ​ Use the formula ​   ​ to find the integral. ​

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Evaluate the definite integral by using the method of integration by parts. ​ Evaluate the definite integral by using the method of integration by parts. ​   ​

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Use the table of integrals to find the integral. ​ Use the table of integrals to find the integral. ​   ​

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Find the indefinite integral. ​ Find the indefinite integral. ​   ​

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The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​ The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​   ​ where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of ​   ​ dollars per year. ​ ​ where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of ​ The present value of a perpetual stream of income that flows continually at the rate of P(t) dollars per year is given by the formula ​   ​ where r is the interest rate compounded continuously. Using this formula, find the present value of a perpetual net income stream that is generated at the rate of ​   ​ dollars per year. ​ ​ dollars per year. ​

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In using the trapezoidal rule, the number of subintervals n must be even.

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In using Simpson's rule, the number of subintervals n may be chosen to be even.

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The demand function for Apex women's boots is ​ The demand function for Apex women's boots is ​   ​ where p is the wholesale unit price in dollars and x is the quantity demanded daily, in units of a hundred. Find the consumers' surplus if the wholesale price is set at $70/pair. Round the result to the nearest dollar. ​ $__________ ​ where p is the wholesale unit price in dollars and x is the quantity demanded daily, in units of a hundred. Find the consumers' surplus if the wholesale price is set at $70/pair. Round the result to the nearest dollar. ​ $__________

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A manmade lake located in Lake View Condominiums has the shape depicted in the following figure. The measurements shown were taken at 10-foot intervals. Using Simpson's rule with A manmade lake located in Lake View Condominiums has the shape depicted in the following figure. The measurements shown were taken at 10-foot intervals. Using Simpson's rule with   , estimate the surface area of the lake. Round the result to the nearest tenth. ​   ​ __________ ft<sup>2</sup> , estimate the surface area of the lake. Round the result to the nearest tenth. ​ A manmade lake located in Lake View Condominiums has the shape depicted in the following figure. The measurements shown were taken at 10-foot intervals. Using Simpson's rule with   , estimate the surface area of the lake. Round the result to the nearest tenth. ​   ​ __________ ft<sup>2</sup> ​ __________ ft2

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Use the formula ​ Use the formula ​   ​to find the integral.  ​to find the integral. Use the formula ​   ​to find the integral.

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If If   exists, then   exists and   . exists, then If   exists, then   exists and   . exists and If   exists, then   exists and   . .

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A university alumni group wishes to provide an annual scholarship in the amount of $1,100 beginning next year. If the scholarship fund will earn an interest rate of 5% / year compounded continuously, find the amount of the endowment the alumni are required to make now. ​

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Find the indefinite integral. ​ Find the indefinite integral. ​

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