Question: A rectangular field is to be enclosed on four sides with a fence. Fencing costs $10 per foot for two opposite sides, and $6 per

A rectangular field is to be enclosed on four sides with a fence. Fencing costs $10 per foot for two opposite sides, and $6 per foot for the other two sides. You are interested in finding the dimensions of the field of area 1080 square feet that would be the cheapest to enclose.

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