Find the power series representation for f(x).f(x) = 
A. 1 - 8x + 8x2 - 8x3
B. 1 - 9x + 9x2 - 9x3
C. 1 + 8x - 8x2 + 8x3
D. 1 + 9x - 9x2 + 9x3
Answer: B
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A. associative property of addition B. additive inverse property C. distributive property D. commutative property of addition
Find the area of the shaded region. Round the answer to the nearest hundredth of a meter.
Solve the problem.A triangle has a base of length x + 2 and a height of x + 8 and has an area of 36 square units. Find the length of base and height. (A = 
BH)
A. base = 6 units; height = 12 units B. base = 6 units; height = 6 units C. base = 8 units; height = 9 units D. base = 4 units; height = 9 units
Solve the problem.The revenue received from the sale of electric heaters is seasonal, with maximum revenue in the winter. Let the revenue received from the sale of heaters be approximated by R(x) = 240 cos 2?x + 600, where x is time in years, measured from January 1. Find R'(x) for March 1st.
A. 0
B. -240?
C. -240?
D. -240?