The shape of the Gateway Arch in St. Louis (with a height and a base length of 630 ft) is modeled by the function y = -630 cosh (x/239.2) + 1260, where |x| ≤ 315, and x and y are measured in feet (see figure). The function cosh x is the hyperbolic cosine, defined byEstimate the length of the Gateway Arch.

Transcribed Image Text:

e* + e* x- cosh x = УА 630 ft 630 ft – х