A ball is thrown from an initial height of 3 meters with an initial upward velocity of 15 m/s. The ball's height h (in meters) after t seconds is given by the following.

Find all values of for which the ball's height is 8 meters.
Round your answer(s) to the nearest hundredth.
(If there is more than one answer, use the "or" button.)

t = seconds ​