Step-by-step explanation:
![4 < x - 7](https://tex.z-dn.net/?f=4%20%3C%20x%20-%207)
It's a straight line so plug in two numbers and connect the points.
And the result is everything under the line. Expect the line because its only < instead of <=
To check your answer use Mathaway or something Desmos
Answer:
-7/8
Step-by-step explanation:
y = 1/8 -1
y = 1/2^3 -1
y = 1 - (2^3)/2^3
y = 1-8/2^3
y = 7/2^3
y = -7/8
hope that helps <3
Answer:
87.3 % of people that speak Chinese than Spanish
Solve both equations for y:
![x-y=3 \ \ \ |-x \\ -y=-x+3 \ \ \ |\times (-1) \\ y=x-3 \\ \\ ay+3a=0 \ \ \ |-3a \\ ay=-3a \ \ \ |\div a, a \not= 0 \\ y=-3](https://tex.z-dn.net/?f=x-y%3D3%20%5C%20%5C%20%5C%20%7C-x%20%5C%5C%0A-y%3D-x%2B3%20%5C%20%5C%20%5C%20%7C%5Ctimes%20%28-1%29%20%5C%5C%0Ay%3Dx-3%20%5C%5C%20%5C%5C%0Aay%2B3a%3D0%20%5C%20%5C%20%5C%20%7C-3a%20%5C%5C%0Aay%3D-3a%20%5C%20%5C%20%5C%20%7C%5Cdiv%20a%2C%20a%20%5Cnot%3D%200%20%5C%5C%0Ay%3D-3)
Set the expressions equal to each other:
![y=y \\ x-3=-3 \ \ \ |+3 \\ x=0 \\ \\ (x,y)=(0,-3)](https://tex.z-dn.net/?f=y%3Dy%20%5C%5C%20x-3%3D-3%20%5C%20%5C%20%5C%20%7C%2B3%20%5C%5C%0Ax%3D0%20%5C%5C%20%5C%5C%0A%28x%2Cy%29%3D%280%2C-3%29)
So, for every nonzero number a the system of equations has
one solution.
You need to watch a video on polynomials, that's how i learned to factor Polynomials
https://www.youtube.com/watch?v=5MA1eZVegg4 - click on the uploader and you'll find how to factor it.
i can't GIVE u the answers but YOU WILL LEARN IT :)