Math

The quarterback of a football team releases a pass at a heights of 7 feet above the playing field, and the football is caught at a height of 4 feet, 30 yards directly downfield. The pass is released at an angle of 35 degrees with the horizontal. The parametric equations for the path of the football are given by x= 0.82vot and y= 7+ 0.57vot - 16t^2 where vo is the speed of the football (in feet per second) when it is released. Find the speed when the football is released.

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