[Steps Shown] A hot-air balloon is rising vertically at a constant rate of 4 ft / sec. A tracking station located on the ground 300 feet from the point
Question: A hot-air balloon is rising vertically at a constant rate of \(4 \mathrm{ft} / \mathrm{sec}\). A tracking station located on the ground 300 feet from the point on the ground directly below the balloon tracks its course. At what rat is the balloon's angle of elevation changing when the balloon is 400 feet high?
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Solution: Let f(x)=√x+x. Solve the following. (5 points
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