Mathematics, 16.06.2020 02:57 kyao5780

A tennis ball is launched from the ground and follows a parabolic path represented by the equation y = - x ^ 2 + 8x , where x=sec seconds. At the same time, an arrow is shot from a height of 20 feet and follows a straight path represented by the equation y = - 3x + 20 U sing your graphing calculator , when will the arrow pierce the tennis ball and at what height off of the ground ? y represents the height of the ball

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A tennis ball is launched from the ground and follows a parabolic path represented by the equation y...