The performance of decision support systems is typically a function of decision quality, decision-making speed, and _____.
a. hardware
b. cost
c. problem complexity
d. software
Answer: c. problem complexity
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Find the surface area or volume.Use an integral table and a calculator to find to two decimal places the area of the surface generated by revolving the curve 
about the x-axis.
A. 69.72 B. 40.67 C. 81.33 D. 57.04
Solve the problem.Suppose that the radius r and volume V = 
?r3 of a sphere are differentiable functions of t. Write an equation that relates dV/dt to dr/dt.
A. 
= 4?r2
B. 
= 4?
C. 
= 
?r2
D. 
= 3r2
Solve. Round to the nearest percent if necessary.One share of stock which originally sold for $130 now sells for $104. What is the percent of decrease?
A. 25% B. 26% C. 20% D. 80%
Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = 
A. Even B. Odd C. Neither