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Please find the answer to this please!!!

Mathematics
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Apr 7th, 2015

The parabola is 1600 meters wide. Since a parabola is symmetrical it extends 800 meters to right and left. At 800 meters to the right or left, the height is 60 meters.

So, the parabola must be

y = kx^2

60 = k(800^2)

k = 60/640,000 = 6/64,000 = 3/32000

y = 3/32000x^2

Then, at 400 meters, the height of the cables is found using that equation:

y = 3/32000(400)^2 = 15 meters

Apr 6th, 2015

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