Mathematics, 25.07.2019 21:00 nourmaali

I'll give 99 points a ball is thrown into the air with an upward velocity of 80ft/s. its height h in feet after t seconds id given by the function h= -16t^2+80t+5. what is the maximum height the ball reaches? how long will it take the ball to reach maximum height? how long does it take for the mall to be caught 5 feet off the ground? all i really need on is the last one. will some one plz me.

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I'll give 99 points a ball is thrown into the air with an upward velocity of 80ft/s. its height h in...