The cost of laying a power line underwater is 2 times that of underground. An island is 5 km from point S on the shore and a power station, P, is 11 km long the shore, perpendicular to S. How should the power line be laid to keep cost to a minimum?

The cost of laying a power line underwater is 2 times that of underground. An island is 5 km from point S on the shore and a power station, P, is 11 km long the shore, perpendicular to S. How should the power line be laid to keep cost to a minimum?

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.3: Lines

Problem 92E

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