2 years ago

Solve the system of equations

Mathematics

2 answers:

vladimir1956 [14]2 years ago

6 0

Answer= A

This is because you have to turn one of the equations to a negative.

nikitadnepr [17]2 years ago

5 0

The solution is A

x=2 y=-1

the solution is where the two lines intersect

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steposvetlana [31]

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Step-by-step explanation:

sowwy

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2 years ago

The post office will accept packages whose combined length and girth is at most 42 inches. (the girth is the perimeter/distance

Vilka [71]

If x represents the length of the box, then 42-x will be the girth. Since the largest area for a given girth is that of a square, the side length of the square cross section is (42 -x)/4.

The volume as a function of package length is then
.. v(x) = x((42-x)/4)^2
This has a maximum at x=14. The corresponding volume is 686 in^3.