Find the value of cos 170.5° rounded to four significant digits.
A. 0.5000
B. 0.9863
C. -0.9863
D. -0.4931
E. -0.8863
Answer: C
Mathematics
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?
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B. 
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D. 
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A. 2x582y692z49 B. x58y69z49 C. x720y1080z600 D. x116y138z98
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A. 
B. 
C. 
D. 
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Solve the problem.Suppose that the population of a certain type of insect in a region near the equator is given by 
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Mathematics