Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.xy + 6x - 2y - 12
A. (y - 6)(x + 2)
B. (x - 6)(y + 2)
C. (y + 6)(x - 2)
D. (x + 6)(y - 2)
Answer: C
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Describe the graph of the polar equation.r = 5cot ? csc ?
A. Parabola with vertex at origin opening to the right B. Parabola with vertex at origin opening upward C. Circle with radius 5 centered at the origin D. Line with slope 5 passing through origin
Find the hours, rate, or earnings as specified.
Find the gross earnings for the week.
A. $44.52 B. $722.28 C. $537.08 D. $481.52
Solve the problem.Ken is 6 feet tall and is walking away from a streetlight. The streetlight has its light bulb 14 feet above the ground, and Ken is walking at the rate of 1.5 feet per second. Find a function, d(t), which gives the distance Ken is from the streetlight in terms of time. Find a function, 
, which gives the length of Ken's shadow in terms of d. Then find 
.
A. (S ? d)(t) = 2.54t B. (S ? d)(t) = 0.83t C. (S ? d)(t) = 1.13t D. (S ? d)(t) = 1.43t
Evaluate the expression.cot(-90°)
A. Undefined
B. 
C. 0
D. -1