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Mathematics 17 Online
OpenStudy (anonymous):

A boat A travels due west at a speed of 30km/h. The velocity of a boat B relative to A is 14km/h due south. Find the speed of boat B and the direction in which it is moving.

OpenStudy (dumbcow):

|dw:1329223309908:dw| use pythagorean thm to find x x^2 = 30^2 + 14^2 tan(theta) = 14/30

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