Solve the problem.A rectangular field is to be enclosed on four sides with a fence. Fencing costs $4 per foot for two opposite sides, and $8 per foot for the other two sides. Find the dimensions of the field of area 880 ft2 that would be the cheapest to enclose.

A. 14.8 ft @ $4 by 59.3 ft @ $8
B. 42 ft @ $4 by 21 ft @ $8
C. 21 ft @ $4 by 42 ft @ $8
D. 59.3 ft @ $4 by 14.8 ft @ $8


Answer: B

Mathematics

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A.  hr
B.  hr
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Mathematics