Answer:
14$
Step-by-step explanation:
2 Packages Will Be Left Over
The Lagrangian for this function and the given constraints is

which has partial derivatives (set equal to 0) satisfying

This is a fairly standard linear system. Solving yields Lagrange multipliers of

and

, and at the same time we find only one critical point at

.
Check the Hessian for

, given by


is positive definite, since

for any vector

, which means

attains a minimum value of

at

. There is no maximum over the given constraints.
Answer:
d
Step-by-step explanation:
Answer:
(x,y)=(0,-23)
Step-by-step explanation:
Answer:
The answer is: 4y(2x+y)
Step-by-step explanation: