Solve the problem.A hiker walks at a bearing of N 19.7° E for an hour and a half at 4 mph, then changes direction to a bearing of S 70.3° E. If the hiker walks at this bearing for two more hours at 6 mph, how far is he from his starting point? Round your answer to the nearest tenth of a mile when necessary.
A. 12.6 mi
B. 10.4 mi
C. 13.4 mi
D. 11.3 mi
Answer: C
Mathematics
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A. 1
B. 
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A. domain: (-?, 1) ? (1, ?); range: (-?, 2) ? (2, ?) B. domain: (-?, 1]; range: (-?, 2] C. domain: (-?, ?); range: (-?, 2] D. domain: (-?, ?); range: (-?, ?)
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Find the zeros of the function. Give exact answers.f(x) = x2 + 6x + 5
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A. f(x) = 
B. f(x) = 
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Mathematics