Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.
A. 10
B. 4
C. 4x
D. 10x
Answer: B
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Find all solutions to the equation. Express each result in radians.cos 2x = 
A. ? = 
+ 2n?, 
+ 2n?
B. 
+ n?
C. 
+ n?, 
+ n?
D. ? = 
+ n?, 
+ n?
Use the graph to find the average rate of change.
A. 1 B. -4 C. 4 D. -1
Suppose that the cost C of removing p percent of the particulate pollution from the exhaust gases at an industrial site is given by 
. Describe any discontinuities for C(p). Explain what each discontinuity means.
?
A. C(p) is discontinuous at 
. This means that not all pollution can be removed.
B. C(p) is discontinuous at 
. This means that none of the pollution can be removed.
C. C(p) is continuous everywhere.
D. C(p) is discontinuous at 
. This means that not all pollution can be removed.
E. C(p) is discontinuous at 
. This means that none of the pollution can be removed.
Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = (7x - 2)2
A. f(x) = 7x - 2, g(x) = x2 B. f(x) = x2, g(x) = 7x - 2 C. f(x) = (7x)2, g(x) = -2 D. f(x) = 7x2, g(x) = x - 2