Answer:
x=-5.5
Step-by-step explanation:
-3(x+4)=(-x-1)
1. Distribute
-3x+(-12)=-x-1
2. Simplify
-3x-12=-x-1
-2x-12=-1
-2x=11
x=-11/2
x=-5.5
Answer:
x=6+4
x<10
(-∞,10)
Step-by-step explanation:
Inequalities are the greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
= -14/5 + k/5
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The area of the box is
which we want to minimize subject to the constraint .
The Lagrangian is
with critical points where the partial derivatives are 0:
Notice that
Substituting the latter into either or will end up suggesting that is infinite, so we throw out this case.
If , then
We ignore the case where because that would make the volume 0. Then
so we have one critical point at
which give a minimum area of about 1829.41 sq. cm.