7.2x=14.4
7.2x/7.2= 14.4/7.2
x=2
Answer:
The zeros are
Larger
Smaller ![r=-14](https://tex.z-dn.net/?f=r%3D-14)
2)The vertex is (-12.5,-2.25)
Step-by-step explanation:
The given function is:
![g(r)=(r+11)(r+14)](https://tex.z-dn.net/?f=g%28r%29%3D%28r%2B11%29%28r%2B14%29)
This function is already in the factored form therefore it is easy to find the zeros,
![(r+11)(r+14)=0](https://tex.z-dn.net/?f=%28r%2B11%29%28r%2B14%29%3D0)
Either
or ![(r+14)=0](https://tex.z-dn.net/?f=%28r%2B14%29%3D0)
The zeros are
or ![r=-11](https://tex.z-dn.net/?f=r%3D-11)
b) The expanded form of the given function is:
![g(r)=r^2+25r+154](https://tex.z-dn.net/?f=g%28r%29%3Dr%5E2%2B25r%2B154)
We obtain the vertex form by completing the square:
![g(r)=r^2+25r+(\frac{25}{2})^2+154-(\frac{25}{2})^2](https://tex.z-dn.net/?f=g%28r%29%3Dr%5E2%2B25r%2B%28%5Cfrac%7B25%7D%7B2%7D%29%5E2%2B154-%28%5Cfrac%7B25%7D%7B2%7D%29%5E2)
The vertex form is:
![g(r)=(r+\frac{25}{2})^2-(\frac{9}{4}](https://tex.z-dn.net/?f=g%28r%29%3D%28r%2B%5Cfrac%7B25%7D%7B2%7D%29%5E2-%28%5Cfrac%7B9%7D%7B4%7D)
Therefore the vertex is (-12.5,-2.25)
Answer:
What ever the length and width is you times them both I don't know if you exactly know that are now but I think it is C
Hope it helps have a great day:)