An outfielder throws a baseball to the player on third base. The height h of the ball in feet is modeled by the function h(t) = -16t^2 + 19t + 5, where t is time in seconds. The third baseman catches the ball when it is 4 feet above the ground. To the nearest tenth of a second, how long was the ball in the air before it was caught?

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anonymous · Answer

You've posted this same question three times. Perhaps you could delete the other two postings? Thanks.