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Question: a freshwater pipeline is to be run from a source...

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A freshwater pipeline is to be run from a source on the edge of a lake to a community on an island 4 miles offshore, as shown in the figure. miles Answer the questions that follow. 0-, Source (A) If it costs 1.5 times as much to lay pipe in the lake as it does on land, what should x be (in miles) to minimize the total cost of this project? x= | | miles (Round to the nearest tenth as needed.) (B) If it costs only 1.2 times as much to lay pipe in the lake as it does on land, what should x be (in miles) to minimize the total cost of this project? x_LI miles (Round to the nearest tenth as needed.

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