Thursday
April 24, 2014

Homework Help: Math

Posted by gagan on Thursday, January 22, 2009 at 5:59pm.

A water balloon is shot into the air so that its height h, in metres, after t seconds is
h = —4.9t^2 + 27t + 2.4

a)How high is the balloon after 1 s?
b)For how long is the balloon more than 30 m high?
c)What is the maximum height reached by the balloon?
d)When will the balloon hit the ground?

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