Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.(-8x5)(-4x4)
A. -12x9
B. -32x20
C. 32x9
D. -12x20
Answer: C
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Solve the problem.A grasshopper is perched on a reed 5 inches above the ground. It hops off the reed and lands on the ground about 7.3 inches away. During its hop, its height is given by the equation 
, where x is the distance in inches from the base of the reed, and h is in inches. How far was the grasshopper from the base of the reed when it was 3.5 inches above the ground? Round to the nearest tenth.
A. 5.9 inches B. 0.9 inches C. 7.3 inches D. 1.4 inches
Solve the problem.A rotating beacon is located 6 ft from a wall. If the distance from the beacon to the point on the wall where the beacon is aimed is given by a = 6|sec (2?t)| , where t is in seconds, find a when t = 0.37 seconds. Round your answer to the nearest hundredth.
A. 11.94 ft B. 15.11 ft C. 8.76 ft D. -8.76 ft
Solve.In the United States, approximately 71 million of the 200 million cars and light trucks in service have driver-side air bags. In a parking lot containing 1000 cars and light trucks, how many would be expected to have driver-side air bags?
A. 305 cars and light trucks B. 405 cars and light trucks C. 355 cars and light trucks D. 455 cars and light trucks
Choose the sketch that has the indicated slope.m is greater than 
A. 
B. 
C. 
D. 