Solved: Cost A power station is on one side of a river that is mile wide. A factory is 3
Chapter 1, Problem 72(choose chapter or problem)
Cost A power station is on one side of a river that is mile wide. A factory is 3 miles downstream on the other side of the river (see figure). It costs $10/ft to run the power lines on land and $15/ft to run them under water. Express the cost C of running the lines from the power station to the factory as a function of x.
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