Multiple Choice
An airplane flying at an altitude of 5 miles passes directly over a radar antenna. When the airplane is 50 miles away (s = 50) , the radar detects that the distance s is changing at a rate of 280 miles per hour. What is the speed of the airplane? Round your answer to the nearest integer.
A) 281 mi/hr
B) 271 mi/hr
C) 563 mi/hr
D) 141 mi/hr
E) 135 mi/hr
Correct Answer:
Verified
Correct Answer:
Verified
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