Factor completely.12x4 + 18x3
A. x3(12x + 18)
B. 6x3(2x + 3)
C. 6(2x4 + 3)
D. 6x3(2x - 3)
Answer: B
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Use trigonometric identities to find the exact value.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
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D. - 
Solve for the amount of discount and amount due.Invoice amt: $4,091Invoice date: July 7Terms: 3/10, n/30Date paid: July 27
A. Amount of discount: $409.10; amount due: $3,681.90 B. Amount of discount: $40.91; amount due: $4,050.09 C. Amount of discount: $0; amount due: $4,091 D. Amount of discount: $122.73; amount due: $3,968.27
Perform the division.
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A. x4 + 25x2 + 125x + 625 B. x4 + 625 C. x4 + 5x3 + 25x2 + 125x + 625 D. x4 + 5x3 + 25x2 + 125x
Solve the problem.The volume V of a right circular cylinder of height 2 and radius r is V(r) = 2?r2. Find the instantaneous rate of change of volume with respect to radius r when r = 7. Express the answer in terms of ?.
A. 98? ft3/ft B. 32? ft3/ft C. 28? ft3/ft D. 23? ft3/ft