Answer:
f(-5) = -5/4
Step-by-step explanation:
Answer:
![(\frac{7}{2})^{2}](https://tex.z-dn.net/?f=%28%5Cfrac%7B7%7D%7B2%7D%29%5E%7B2%7D)
Step-by-step explanation:
Brain correctly use a method of completing the square to solve the equation:
![x^2+7x-11=0](https://tex.z-dn.net/?f=x%5E2%2B7x-11%3D0)
His First Step is to: Take the Constant Term to the Right Hand Side
![x^2+7x=11](https://tex.z-dn.net/?f=x%5E2%2B7x%3D11)
The Next Step Would be to:
- Divide the Coefficient of x by 2
- Square It
- Add it to both Sides
In this case, the Coefficient of x = 7
- Divided by 2 =
![\frac{7}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B2%7D)
- Squaring It, we have:
![(\frac{7}{2})^{2}](https://tex.z-dn.net/?f=%28%5Cfrac%7B7%7D%7B2%7D%29%5E%7B2%7D)
It is this number
that is added to both sides in the manner below:
![x^2+7x+(\frac{7}{2})^{2}=11+(\frac{7}{2})^{2}](https://tex.z-dn.net/?f=x%5E2%2B7x%2B%28%5Cfrac%7B7%7D%7B2%7D%29%5E%7B2%7D%3D11%2B%28%5Cfrac%7B7%7D%7B2%7D%29%5E%7B2%7D)
Answers:
1. No I don't agree with Selena because the area of the rectangle has the exact same area of the square
Step-by-step explanation:
1. square = x
rectangle length = 6 + x
rectangle width = x - 6
the plus 6 and minus 6 cancel each other out and make the same area that the square has.
Im sorry i dont know what the answe to 2 is.