Oil Refinery A drilling rig 12 mi offshore is to be connected by a pipe to a refinery onshore, 20 mi down the coast from the rig as shown in the figure. If underwater pipe costs S40,000 per mile and land-based pipe costs$30,000 per mile, what values of rand y give the least expensive connection?

حسين صبر

Dec. 31, 2017, 12:33 a.m.

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