For the following exercises, set up and evaluate each optimization problem. 315. To carry a suitcase on an airplane, the length +width + height of the box must be less than or equal to 62 in. Assuming the height is fixed, show that the maximum volume is V = h ( 31 − ( 1 2 ) h ) 2 . What height allows you to have the largest volume?
For the following exercises, set up and evaluate each optimization problem. 315. To carry a suitcase on an airplane, the length +width + height of the box must be less than or equal to 62 in. Assuming the height is fixed, show that the maximum volume is V = h ( 31 − ( 1 2 ) h ) 2 . What height allows you to have the largest volume?
For the following exercises, set up and evaluate each optimization problem.
315. To carry a suitcase on an airplane, the length +width + height of the box must be less than or equal to 62 in. Assuming the height is fixed, show that the maximum volume is
V
=
h
(
31
−
(
1
2
)
h
)
2
. What height allows you to have the largest volume?
Suppose we have a linear program in standard equation form
maximize cx
subject to Ax = b,
x > 0.
and suppose u, v, and w are all optimal solutions to this linear program.
(a) Prove that z = u+v+w is an optimal solution.
(b) If you try to adapt your proof from part (a) to prove that that u+v+w
is an optimal solution, say exactly which part(s) of the proof go wrong.
(c) If you try to adapt your proof from part (a) to prove that u+v-w is an
optimal solution, say exactly which part(s) of the proof go wrong.
Elementary and Intermediate Algebra: Concepts and Applications (7th Edition)
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