Solve the problem.The owner of a video store has determined that the profits P of the store are approximately given by 
where x is the number of videos rented daily. Find the maximum profit to the nearest dollar.
A. $100
B. $200
C. $251
D. $151
Answer: D
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Rationalize the equation, then use it to solve the problem.The time T in seconds required for a pendulum of length L feet to make one swing is given by 
How long is a pendulum (to nearest hundredth of a foot) if it makes one swing in 3 seconds? Use 3.14 for ?.
What will be an ideal response?
Find the first two nonzero terms of the Maclaurin expansion of the given function.f(x) = excos x
A. x + x2 - ...
B. 
+ 2x - ...
C. 1 + x2 + ...
D. 1 + x - ...
Solve.The cross-sectional area of a rectangular duct is 240 square inches. If the length is 5 inches less than twice the width, what is the length of each side? Round to the nearest hundredth.
What will be an ideal response?
Find the exact value of the logarithmic expression.log9 
A. -81 B. 3 C. 81 D. -3