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Category:
Algebra
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Question description

Suppose an object is dropped from a height h0 above the ground. Then its height after t seconds is given by h = −16t 2 + h0, where h is measured in feet. Use this information to solve the problem.

A ball is dropped from the top of a building 82 ft tall. (Round your answers to three decimal places.)

(a) How long will it take to fall half the distance to ground level?
t =  sec

(b) How long will it take to fall to ground level?
t =  sec

A box with a square base and no top is to be made from a square piece of cardboard by cutting 4-in. squares from each corner and folding up the sides, as shown in the figure. The box is to hold 100 in3. How big a piece of cardboard is needed?
in by in

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(Top Tutor) Daniel C.
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School: UCLA
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