Find the foci of the ellipse.5x2 + 3y2 - 20x + 18y + 32 = 0
A. (-2, 3 + 
) , (-2, 3 - 
)
B. (2, -3 + 
) , (2, -3 - 
)
C. (2 + 
, -3) , (2 - 
, -3)
D. (2, -3 + 
) , (2, -3 - 
)
Answer: B
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Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The curves 
and 
A. 
B. 
C. 
D. 
Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation p = -20x + 640, 0 ? x ? 32.What price should the company charge to maximize revenue?
A. $8 B. $19.2 C. $24 D. $16
For the given functions f and g, find the requested composite function.f(x) = 
, g(x) = 8x - 11;
Find (f ? g)(x).
A. 2
B. 8
C. 2
D. 8
- 11
For the polynomial, list each real zero and its multiplicity. Determine whether the graph crosses or touches the x-axis at each x -intercept.f(x) = 4(x2 + 3)(x - 2)2
A. 2, multiplicity 2, crosses x-axis B. 2, multiplicity 2, touches x-axis C. -3, multiplicity 1, crosses x-axis; 2, multiplicity 2, touches x-axis D. -3, multiplicity 1, touches x-axis; 2, multiplicity 2, crosses x-axis