Mathematics, 17.12.2020 23:20, alexusray

A railroad tunnel is shaped like a parabola, as shown below. The height of the tunnel at the center is 35 ft, and the vertical clearance must be 21 ft at a point 8 ft from the
center. Find an equation for the parabola.

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A railroad tunnel is shaped like a parabola, as shown below. The height of the tunnel at the center...