Asked by PROMISE
The cable of a suspension bridge hangs in the form of a parabola. The supporting towels are 500ft. Apart and 50ft high and the cable at its lowest point is 10ft above the road way using the axes of the parabola as x axes. Find the equation of the parabola . Hence the length of the vertical cable 60ft from the centre of the bridge collect the nearest 10th of a foot
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