The management of a large store wishes to add a fenced-in storage yard of 20,000 square feet, using the building as one side of the yard. Find the minimum amount of fencing that must be used to enclose the remaining 3 sides of the yard.© BrainMass Inc. brainmass.com December 24, 2021, 4:44 pm ad1c9bdddf
We can assume the length of the two equal sides is x, and the remaining side is y.
Then the total length of the three sides are: C=2x+y
and its area is S=x*y=20000
our question is now: Min C=2x+y with constraint: ...
Implicit differentiation is used to solve an optimization problem.