An offshore oil well is located in the ocean at a point W, which is 5km from the closest shore- point A( ie. the perpendicular distance from W to A) on a straight shoreline. The oil is to be piped to a shore point B that is 8km from A by piping it on a straight line under water from W to some shore point P between A and B and then on to B through a pipe along the shoreline. If the cost of laying pipe is $100000/km under water and $75000/km over land. What is the minimum cost?

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter1: Line And Angle Relationships
Section1.4: Relationships: Perpendicular Lines
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An offshore oil well is located in the ocean at a point W, which is 5km from the closest shore- point A( ie. the perpendicular distance from W to A) on a straight shoreline. The oil is to be piped to a shore point B that is 8km from A by piping it on a straight line under water from W to some shore point P between A and B and then on to B through a pipe along the shoreline. If the cost of laying pipe is $100000/km under water and $75000/km over land. What is the minimum cost?

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