X-7/5 = -2
x- 7 = -10
x = -3
The number is -3
Answer:
2.71828
Step-by-step explanation:
took the quiz and got it right
Answer:
slope = 0
Step-by-step explanation:
y = 3 is the equation of a horizontal line parallel to the x- axis.
Since it is parallel to the x- axis then slope = 0
Answer:
-2x-5
Step-by-step explanation:
we are given
![a^2+5a+6=0](https://tex.z-dn.net/?f=%20a%5E2%2B5a%2B6%3D0%20)
we can use factoring formula
![a^2-(m+n)a+mn=(a-m)(a-n)](https://tex.z-dn.net/?f=%20a%5E2-%28m%2Bn%29a%2Bmn%3D%28a-m%29%28a-n%29%20)
we can compare
and we get
![m+n=-5](https://tex.z-dn.net/?f=%20m%2Bn%3D-5%20)
![mn=6](https://tex.z-dn.net/?f=%20mn%3D6%20)
now, we can solve for m and n
and we get
![m=-3 , n=-2](https://tex.z-dn.net/?f=%20m%3D-3%20%2C%20n%3D-2%20)
now, we can use formula
and we get
![a^2+5a+6=(a+3)(a+2)](https://tex.z-dn.net/?f=%20a%5E2%2B5a%2B6%3D%28a%2B3%29%28a%2B2%29%20)
now, we can set it equal to 0
![a^2+5a+6=(a+3)(a+2)=0](https://tex.z-dn.net/?f=%20a%5E2%2B5a%2B6%3D%28a%2B3%29%28a%2B2%29%3D0%20)
![(a+3)=0](https://tex.z-dn.net/?f=%20%28a%2B3%29%3D0%20)
![a=-3](https://tex.z-dn.net/?f=%20a%3D-3%20)
![a+2=0](https://tex.z-dn.net/?f=%20a%2B2%3D0%20)
![a=-2](https://tex.z-dn.net/?f=%20a%3D-2%20)
so, we will get
.............Answer