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OpenStudy (anonymous):
At 3:00 pm, a boat is 12.5 miles due west of a radar station and traveling at 11mph in a direction that is 57.3° south of an east-west line. At what time will the boat be closest to the radar station?
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OpenStudy (perl):
|dw:1414472805592:dw|
OpenStudy (perl):
now use trig cos (57.3) = x / 12.5 12.5 * cos(57.3) = x
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