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A weather balloon rising from the ground at 140 ft/min is tracked by a range finder...

A weather balloon rising from the ground at 140 ft/min is tracked by a range finder located 300 feet from the point of liftoff.

A) Find the rate at which the angle of inclination from the finger to the balloon is changing when the balloon is 400 feet above the ground.

B) Find the rate at which the straight-line distance to the balloon is changing when the balloon is 400 feet above the ground.

Math   Calculus   
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