Multiple Choice
An airplane flying at an altitude of 4 miles passes directly over a radar antenna.When the airplane is 25 miles away 
,the radar detects that the distance s is changing at a rate of 220 miles per hour.What is the speed of the airplane? Round your answer to the nearest integer.
A) 223 mi/hr
B) 206 mi/hr
C) 446 mi/hr
D) 111 mi/hr
E) 103 mi/hr
Correct Answer:
Verified
Correct Answer:
Verified
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