Evaluate.-54
A. -625
B. 20
C. -20
D. 625
Answer: A
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Solve the problem.A ball dropped from the top of a building has a height of s = 256 - 16t2 meters after t seconds. How long does it take the ball to reach the ground? What is the ball's velocity at the moment of impact?
A. 8 sec, -64 m/sec B. 4 sec, -128 m/sec C. 16 sec, -512 m/sec D. 4 sec, 128 m/sec
Solve the problem.Photography reprints cost $0.52 each at a local photo shop, or $0.44 each, plus $1.15 postage and handling, through the mail. How many reprints must a customer purchase to make it less expensive to use mail order?
A. none of these B. More than 19 reprints C. More than 20 reprints D. More than 14 reprints
Use the square root property to solve the quadratic equation.x2 - 13 = 0
A. No real solution
B. 
C. ± 
D. ± 13
Convert to a logarithmic equation.100.7782 = 6
A. 6 = log 10 0.7782 B. 0.7782 = log 10 6 C. 0.7782 = log 9 10 D. 10 = log 9 0.7782