Posted by **pam** on Thursday, March 21, 2013 at 9:53pm.

a launched rocket has an altitude, in meters, given by the polynimial h+vt-4.9t^2 where h is the height, in meters, from which the launch occurs, at velocity v in meters per second, and t is the number of seconds for which the rocket is airborne. If a rocket is launched from the top of a tower 100 meters high with an initial upwrd speed of 20 meters per second. What will the height be after 4 seconds?

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