Question

At the height of h meters, you can see V kilometers to the horizon. These numbers are related by the equation V=3.5√h. Aperson can see 392 km to the horizon from an airplane window. How high is the airplane?

Answer 1

what you wanna do is set v to be 392 like so: \[392=3.5\sqrt{h}\], no solve for h

Answer 2

12,544 meters

Answer 3

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