View the step-by-step solution to: an airplane is flying at an altitude of 7 mi and passes directly oer a radar ant...

an airplane is flying at an altitude of 7 mi and passes directly oer a radar antenna as shown in the figure.When the plane is 10 mi from the antenna (s=10), the radar detects that the distance s is changing at the rate of 300 mph. What is the speed of the airplane at that moment?

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