Essay
A building in the shape of a rectangular box is to have a volume of 
(see the figure).It is estimated that the annual heating and cooling costs will be $2/square foot for the top, $7/square foot for the front and back, and $6/square foot for the sides.Find the dimensions of the building that will result in a minimal annual heating and cooling cost.What is the minimal annual heating and cooling cost(C)? 
x = __________
y = __________
z = __________
C = __________
Correct Answer:
Verified
Correct Answer:
Verified
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