Trigonometry
posted by Cyndy .
An airplane is flying on a heading of 115° with a constant velocity of 675 mph. How far south will it
travel in 2 hours if it continues to maintain its velocity?
A. 290 miles
B. 570 miles
C. 310 miles
D. 610 miles

a distance d at 115° will travel d sin 25° south.
So, in 2 hours, having gone 1350 miles, it will have gone 1350 sin 25° = 570 miles south.
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