Answer:
C linear
Step-by-step explanation:
The model is increasing in a straight line and doesn't seem to be decreasing by the information given.
Answer:
x = 2, y = -1
Step-by-step explanation:
To find x, use elimination.
multiply everything in x - y = 3 by 2
(x - y = 3)2
that will now become 2x - 2y = 6
now line the equations up.
4x + 2y = 6
2x - 2y = 6
Now add everything going down.
4x + 2x is 6x, 2y and -2y cancel out, and 6 + 6 is 12. the equation is now:
6x = 12
divide on each side.
x = 2
to find y, substitute 2 into x - y = 3
2 - y = 3
-y = 1
y = -1
The area of cardboard she used is given by the formula A =
, where s represents the side length of the cube.
Now the question asks for the equation , which we can use to solve for s
it means
we have to solve for s
or in other words we have to isolate s
Now
A=![6s^2](https://tex.z-dn.net/?f=%206s%5E2%20)
Divide both sides by 6
![\frac{A}{6} =s^2](https://tex.z-dn.net/?f=%20%5Cfrac%7BA%7D%7B6%7D%20%3Ds%5E2%20)
or
![s^2 =\frac{A}{6}](https://tex.z-dn.net/?f=%20s%5E2%20%3D%5Cfrac%7BA%7D%7B6%7D%20%20%20)
Take square root on both side
![s =\sqrt{\frac{A}{6}}](https://tex.z-dn.net/?f=%20s%20%3D%5Csqrt%7B%5Cfrac%7BA%7D%7B6%7D%7D%20%20%20)
So this is the formula we can use to solve for s