Homework Help: math

Posted by tina on Wednesday, November 9, 2011 at 1:33pm.

f a stone is tossed from the top of a 330 meter building, the height of the stone as a function of time is given by h(t) = -9.8t2 – 10t + 330, where t is in seconds, and height is in meters. After how many seconds will the stone hit the ground? Round to the nearest hundredth’s place; include units in your answer.

math - Henry, Friday, November 11, 2011 at 5:00pm
h(t) = -9.8t^2 - 10t + 330 = 0.
-9.8t^2 - 10t + 330 = 0,
Solve using Quad. Formula and get:
t = 5.3151s.

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