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Mathematics 7 Online
OpenStudy (anonymous):

A plane flying with a constant speed of 14 km/min passes over a ground radar station at an altitude of 9 km and climbs at an angle of 20 degrees. At what rate is the distance from the plane to the radar station increasing 4 minutes later? I am getting 13.78 km/min but that is not right...help?

OpenStudy (triciaal):

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