Simplify the expression.sin 8x cos 8x
A. cos 4x
B. 2 sin 4x
C. cos 8x
D. 
sin 16x
Answer: D
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Solve the problem.$702 is deposited into a savings account at 6% interest, compounded monthly. To the nearest year, how long will it take for the account balance to reach $1,000,000?
A. 109 years B. 121 years C. 85 years D. 170 years
Write the first five terms of the arithmetic sequence with the given first term a and common difference d.a = -16; d = 2
A. -8, -10, -12, -14, -16 B. -12, -14, -16, -18, -20 C. -16, -14, -12, -10, -8 D. -12, -10, -8, -6, -4
Find the exact value of the expression.cos 
A. 
B. 
C. 
D. 
Solve the problem.Traveling at r kilometers per hour for t hours, a driver will travel rt kilometers. How far will Danny travel in 9 hours at a speed of 64 kilometers per hour?
A. 7.1 kilometers B. 576 kilometers C. 73 kilometers D. 576 miles