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September 20, 2014

Homework Help: algebra

Posted by Sherrydoug2 on Monday, March 4, 2013 at 8:00pm.

A ball is thrown upward with an initial velocity of 14 meters per second from a cliff that is high. The height of the ball is given by the quadratic equation
H = 49t^2 + 14t +60
where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be 30 meters from the ground. Round your answer to the nearest tenth of a second.

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