Mathematics, 11.10.2020 18:01, gatewood1058

A ball gets kicked from the ground, and the equation that models the height of the ball (measured in metres) versus time (measured in seconds) is given by h(t) = -4.9t2 +12.8t. How long is the ball in the air, to 2 decimal places, before it hits the ground?
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A ball gets kicked from the ground, and the equation that models the height of the ball (measured in...