SOLUTION: A rectangular package to be sent by the U.S. Postal Service can have a maximum combined length and girth (perimeter of a cross section) of 156 inches (see figure). (a) Write the

Question 893783: A rectangular package to be sent by the U.S. Postal Service can have a maximum combined length and girth (perimeter of a cross section) of 156 inches (see figure).
(a) Write the volume V of the package as a function of x.
V =
What is the domain of the function?
Use a graphing utility to graph your function. Be sure to use an appropriate window setting.
What dimensions will maximize the volume of the package?
From the graph, the maximum/minimum volume occurs when x =

THANKS
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Description specified "rectangular package".
z is for length and x and y are for the cross section dimensions.
and for volume.

You have two equations in four unknown variables. More information is needed.
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