<PRE><B>Question 622431</B>
A ball is dropped from a cliff that is 464 feet high. The distance S (in feet) that it falls in t seconds is given by the formula S = 464 - 16t^2. How many seconds (to tenths) will it take for the ball to hit the ground?
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Set s to zero and solve for t:
S = 464 - 16t^2
0 = 464 - 16t^2
-464 = -16t^2
464 = 16t^2
29 = t^2
5.4 seconds = t
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