My Math Forum Minimum of a function?

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 June 6th, 2014, 10:47 AM #1 Newbie   Joined: Jun 2014 From: Belo Horizonte Posts: 5 Thanks: 0 Minimum of a function? A drilling 12 miles off the coast will be connected to a coastal refinery, 20 miles below the perforation line. The underwater pipeline cost 50.000 per mile. Whereas the land, cost \$30.000 per mile. What is the combination of the two types of products that will provide the least expensive connection? Last edited by condemath2; June 6th, 2014 at 10:51 AM.
 June 6th, 2014, 05:13 PM #2 Math Team   Joined: Dec 2013 From: Colombia Posts: 7,614 Thanks: 2603 Math Focus: Mainly analysis and algebra Do a search for "pipeline" in the forum. There's a few threads with puzzles like this.

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