Simplify the exponential expression. Assume that variables represent nonzero real numbers.-63
A. 18
B. -18
C. 216
D. -216
Answer: D
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Write the square root as a product of square roots.
A. 
? 
B. 
? 4
C. 17
D. 
? 3
Use the area of the given parallelogram, the specified base or height, and the appropriate formula to find the requested measurement.The area is 48 in.2, and the base is 8 in. Find the height.
A. 8 in. B. 11 in. C. 6 in. D. 5 in.
Use a coterminal angle to find the exact value of the expression. Do not use a calculator.sin -675°
A. - 
B. 
C. - 
D. 
Solve the problem.A rotating beacon is located 4 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 = 4|sec 2?t|,where t is in seconds, find a when t = 0.34 seconds. Round your answer to the nearest hundredth.
A. 7.88 ft B. -7.47 ft C. 8.30 ft D. 7.47 ft