Simplify.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = -1?
A. 
, 
B. ?
C. 
D. none
Use a calculator to solve the equation. Round to the nearest hundredth, if necessary.(2.76m - 7.30)2 = 6.97
A. {3.60, 1.69} B. {3.22, 0.04} C. {3.60, -3.60} D. {-1.69, 3.60}
Solve the right triangle shown in the figure. Round lengths to one decimal place and express angles to the nearest tenth of a degree. 
B = 30.4°, c = 3.4 mm
A. a = 2.9 mm, A = 59.6°, b = 2.1 mm B. a = 2.1 mm, A = 59.6°, b = 2.7 mm C. a = 2.9 mm, A = 59.6°, b = 1.7 mm D. a = 1.7 mm, A = 59.6°, b = 2.9 mm
A small town has only two dry cleaners, Fast and Speedy. Fast hopes to increase its market share by conducting an extensive advertising campaign. The initial market share for Fast was 40% and 60% for Speedy. Solve the problem.Find the probability that a customer using Fast initially will use Fast for his second batch of clothes. Use the following transition matrix.FastSpeedy 
A. 0.64 B. 0.57 C. 0.43 D. 0.36