Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. -980
B. -1015
C. -857.5
D. -735
Answer: B
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Given the graph of the function f(x) = -x3 + 3x; find a formula for g(x) .f(x) = -x3 + 3xg(x) =
?
A. g(x) = -x3 + 3x - 2 B. g(x) = -x3 + 3x + 2 C. g(x) = -(x + 2)3 + 3(x + 2) D. g(x) = -(x - 2)3 + 3(x - 2)
Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is 
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $1,036,800 B. $518,400 C. $259,200 D. $129,600
Write the improper fraction as a whole or mixed number.
A. 2
B. 3
C. 1
D. 2
Solve the problem.The electric power p (in W) as a function of the current i (in A) in a certain circuit is given by 
Find the instantaneous rate of change of p with respect to i for i = 0.7 A.
A. 87.5 W/A B. 105 W/A C. 61.25 W/A D. 84 W/A