An island is 3.5 miles from the nearest point on a straight shoreline; that point is 8 miles from a power station. A utility company plans to lay electrical cable underwater from the island to the shore and then underground along the shore to the power station. Assume that it costs $2400 / mile to lay underwater cable and $1200 / mile to lay underground cable. At what point should the underwater cable meet the shore in order to minimize the cost of the project? step by step explanation
An island is 3.5 miles from the nearest point on a straight shoreline; that point is 8 miles from a power station. A utility company plans to lay electrical cable underwater from the island to the shore and then underground along the shore to the power station. Assume that it costs $2400 / mile to lay underwater cable and $1200 / mile to lay underground cable. At what point should the underwater cable meet the shore in order to minimize the cost of the project? step by step explanation
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter8: Areas Of Polygons And Circles
Section8.5: More Area Relationships In The Circle
Problem 30E: At the Pizza Dude restaurant, a 12-in. pizza costs 5.40 to make, and the manager wants to make at...
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An island is 3.5 miles from the nearest point on a straight shoreline; that point is 8 miles from a power station. A utility company plans to lay electrical cable underwater from the island to the shore and then underground along the shore to the power station. Assume that it costs $2400 / mile to lay underwater cable and $1200 / mile to lay underground cable. At what point should the underwater cable meet the shore in order to minimize the cost of the project?
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