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Question
An airplane flying at an altitude of 5 miles passes directly over a radar antenna. When the airplane is 25 miles away (s = 25), the radar detects that the distance s is changing at a rate of 250 miles per hour. What is the speed of the airplane? Round your answer to the nearest integer.A) 255 mi/hr
B) 236 mi/hr
C) 510 mi/hr
D) 128 mi/hr
E) 118 mi/hr
Answer
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