Solve the problem.
-A plane takes off from an airport on the bearing S29°W. It continues for 20 minutes then changes to bearing S52°W and flies for 2 hours 20 minutes on this course then lands at a second airport. If the plane' s speed is 420
Mph, how far from the first airport is the second airport? Round your answer correct to the nearest mile.
A) 1011 mi
B) 1111 mi
C) 1110 mi
D) 1010 mi

Question

Quizplus · Accepted Answer

The plane flies for 20 minutes (1/3 hour) at 420 mph, covering 140 miles. Then, it flies for 2 hours and 20 minutes (7/3 hours) at 420 mph, covering 980 miles. Using the law of cosines to find the distance between the starting and ending points, the total distance is approximately 1110 miles.

Solve the Problem. -A Plane Takes Off from an Airport on the Bearing