Convert the rectangular coordinates to polar coordinates. Round r to the nearest tenth, if necessary, and round ? to the nearest tenth of a degree.(15, 20)
A. (25, 36.9°)
B. (35, 36.9°)
C. (25, 48.6°)
D. (25, 53.1°)
Answer: D
Mathematics
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Find 
.y = (x + 8) sin x
A. cos x ln (x + 8) + 
B. sin x ln (x + 8)
C. (x + 8) sin x
D. 
(x + 8) sin x
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Name the quadrant in which the point is located.(-9, -10)
A. I B. II C. III D. IV
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Solve the problem.How many times more intense is an earthquake that measures 5 on the Richter scale than an earthquake that measures 1?
A. 4 B. 10,000 C. 1000 D. 40
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Find the percent using a proportion. Round your answer to the nearest tenth if necessary.93.5 feet is what percent of 5 feet?
A. 1870% B. 18,700% C. 0.5% D. 5.3%
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