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Mathematics, 31.03.2020 23:59 samsmith666

A guy hits a ball from a starting elevation of 2 feet with a velocity of 70 feet per second down to a green with an elevation of -7 feet. the number of seconds t is takes the ball to hit the green can be represented by the equation -16t^2+70t+2=-7. how long does it take the ball to land on the green

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