Evaluate.-72
A. 14
B. -49
C. -14
D. 49
Answer: B
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Find the center of mass of a thin plate of constant density covering the given region.The region bounded by y = x2 and y = 9
A. 
= 0, 
= 
B. 
= 0, 
= 15
C. 
= 0, 
= 
D. 
= 0, 
= 
Using the derivative of f(x) given below, determine the intervals on which f(x) is increasing or decreasing.f'(x) = x1/3(x - 7)
A. Decreasing on (0, 7); increasing on (7, ?) B. Decreasing on (0, 7); increasing on (-?, 0) ? (7, ?) C. Decreasing on (-?, 0) ? (7, ?); increasing on (0, 7) D. Increasing on (0, ?)
4 ? 7
A. 11
B. 30
C. 30
D. 28
Determine the constant that should be added to the binomial so that it becomes a perfect square trinomial. Then write and factor the trinomial.x2 - 14x
A. -196; x2 - 14x - 196 = (x - 14) 2 B. 49; x2 - 14x + 49 = (x - 7) 2 C. 196; x2 - 14x + 196 = (x - 14) 2 D. -49; x2 - 14x - 49 = (x - 7) 2