Factor the trinomial.54 + 15x + x2
A. (x + 9)(x + 6)
B. (x - 9)(x - 6)
C. (x - 9)(x + 6)
D. (x + 54)(x + 1)
Answer: A
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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = 16 - x2 between x = -4 and x = 4 using the "midpoint rule" with two rectangles of equal width.
A. 48 B. 96 C. 8 D. 32
Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln(cos(ln ?))
A. - 
B. tan(ln ?)
C. -tan(ln ?)
D. 
Use the information given about the angle ? to find the exact value of the indicated trigonometric function.cot ? = -3, sec ? > 0Find cos 
.
A. -
B. 
C. 
D. -
Identify the pairs of complementary or supplementary angles, as indicated.Supplementary
A. ?COB & ?BOD; ?BOD & ?AOD B. ?AOC & ?AOD; ?AOD & ?DOB; ?DOB & ?COB; ?COB & ?AOC C. ?AOD & ?COB; ?AOC & ?DOB D. ?AOC & ?AOD; ?AOD & ?DOB