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July 28, 2014

Homework Help: Math(module 4 Calculus)

Posted by Furzeen on Tuesday, November 29, 2011 at 5:58am.

(minimum commuting time) A lighthouse lies 2 miles offshore directly across from point A of a straight coastline. The lighthouse keeper lives 5 miles down the coast from point A.What is the minimum time it will take the lighthouse keeper to commute to work, rowing his boat at 3 miles per hour, and walking at 5 miles per hour?

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