-b b x
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.3: Multiplying Monomials
Problem 48WE
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(a) The figure shows a telephone wire hanging between two poles at x= -b and x= b. It takes the shape of a catenary with equation y=c+ a cosh(x/a). Find the length of the wire.
(b) Suppose two telephone poles are 50 ft apart and the length of the length of the wire between the poles is 51 ft.If the lowest point of the wire must be 20 ft above the ground, how high up on each pole should the wire be attached?
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