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Mathematics, 05.12.2019 08:31 saharaapollonio

The equation h = -16t^2 +32t +9 gives the height of the ball, h, in feet above the ground, at t seconds after the ball is thrown upward. how many seconds after the ball is thrown will it reach its maximum height? what is its maximum height?

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The equation h = -16t^2 +32t +9 gives the height of the ball, h, in feet above the ground, at t seco...
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