Question 622431
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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The distance S (in feet) that it falls in t seconds is given by the formula S = 464 - 16t^2.
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That's not true.  
s in ft = 16t^2 is the distance it falls.
Its height above the ground = 464 -16t^2
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At impact, h = 0
464 - 16t^2 = 0
t^2 = 29
t =~ 5.4 seconds