Question: Repeat Exercise 37, but make point A 7 miles from point C. Exercise 37 A company wishes to run a utility cable from point A

Repeat Exercise 37, but make point A 7 miles from point C.

Exercise 37

A company wishes to run a utility cable from point A on the shore (see the figure below) to an installation at point B on the island. The island is 6 miles from the shore. Point A is 9 miles from Point C, the point on the shore closest to Point B. It costs $400 per mile to run the cable on land and $500 per mile underwater. Assume that the cable starts at A and runs along the shoreline, then angles and runs underwater to the island. Find the point at which the line should begin to angle in order to yield the minimum total cost. B 6 C Island 9 Shore line A

B 6 C Island 9 Shore line A

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