Answer:
![x=-2\\y=2](https://tex.z-dn.net/?f=x%3D-2%5C%5Cy%3D2)
Step-by-step explanation:
![-2x+6y=6\\-7x+8y=-5](https://tex.z-dn.net/?f=-2x%2B6y%3D6%5C%5C-7x%2B8y%3D-5)
Let's multiply the first equation by 7 and the second equation by -2
![(7)(-2x+6y=6)\\(-2)(-7x+8y=-5)](https://tex.z-dn.net/?f=%287%29%28-2x%2B6y%3D6%29%5C%5C%28-2%29%28-7x%2B8y%3D-5%29)
![-14x+42y=42\\14x-16y=10](https://tex.z-dn.net/?f=-14x%2B42y%3D42%5C%5C14x-16y%3D10)
Now add them together. In this step, x is eliminated.
![26y=52](https://tex.z-dn.net/?f=26y%3D52)
Divide by 26.
![y=\frac{52}{26}\\ y=2](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B52%7D%7B26%7D%5C%5C%20y%3D2)
Now plug this into any of the two equations to find x.
![-2x+6y=6\\-2x+6(2)=6\\-2x+12=16\\-2x=16-12\\-2x=4\\x=\frac{4}{-2}\\ x=-2](https://tex.z-dn.net/?f=-2x%2B6y%3D6%5C%5C-2x%2B6%282%29%3D6%5C%5C-2x%2B12%3D16%5C%5C-2x%3D16-12%5C%5C-2x%3D4%5C%5Cx%3D%5Cfrac%7B4%7D%7B-2%7D%5C%5C%20x%3D-2)
1)35 degrees
2)50 degrees
3)91 degrees
4)118 degrees
Answer:
13 is 135
14 is 293.3
15 is 14208
16 is 400
17 is 125 percent of 44
18 is 137.5 percent of 56
19 is 25 percent
20 is 2 percent
Step-by-step explanation:
Yes, this is true. All squares are rectangles but no rectangles are squares. Squares and rectangles are classified as quadrilateral
It is three hundred fifty-six thousandths.