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April 21, 2014

Homework Help: calculus

Posted by Angel on Thursday, September 22, 2011 at 8:02am.

A power station is on one side of a river that is 0.5 mile wide, and a factory is 5.00 miles downstream on the other side of the river. It costs $15 per foot to run overland power lines and $23 per foot to run underwater power lines. Estimate the value of x that minimizes the cost.


a. 1.00

b. 0.43

c. 0.00

d. 2.00

e. 1.44

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