Combine like terms.9x + 14x
A. 23x
B. 46x
C. 126x
D. 23x2
Answer: A
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Solve the problem.A storage tank used to hold sand is leaking. The sand forms a conical pile whose height is twice the radius of the base. The radius of the pile increases at the rate of 3 inches per minute. Find the rate of change of volume when the radius is 4 inches.
A. 96? in.3/min B. 24? in.3/min C. 48? in.3/min D. 192? in.3/min
Give the ordered pairs that correspond to the points labeled in the figure.
A. G = (7, 2), H = (-4, -7) B. G = (7, -4), H = (2, -4) C. G = (7, 2), H = (-7, -4) D. G = (2, 30), H = (-4, -7)
Solve the equation for exact solutions.cos-1 x = sin-1 
A. {0}
B. ?
C. 
D. 
Solve the problem.Express 105° as ? + ?, where cos ? and cos ? are known exactly.
A. 10° + 95° B. 60° + 45° C. 62° + 43° D. 58° + 47°