Asked by rica
a motor boat moves in the direction of N 38° E for 3 hrs at 20 mph. How far north and how far east does it travel?
Answers
Answered by
Reiny
I see a right-angled triangle with hypotenuse of 60 and a base angle of 52°
sin52 = y/60 --> y = 60sin52 = ...
cos52 = x/60 ---> x = 60cos52 = ...
sin52 = y/60 --> y = 60sin52 = ...
cos52 = x/60 ---> x = 60cos52 = ...
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