I think the first two are binomials and the last one is a trinomial..
Answer:
some math
Step-by-step explanation:
this look like gym
1.) x= 4/3
2.) x= 0
3.) x= -14/11
Hope this helps sorry if not
Answer:
![\large\boxed{C=22\pi y\ ft}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7BC%3D22%5Cpi%20y%5C%20ft%7D)
Step-by-step explanation:
The formula of an area of a circle:
![A=\pi r^2](https://tex.z-dn.net/?f=A%3D%5Cpi%20r%5E2)
r - radius
The formula of a circumference of a circle:
![C=2\pi r](https://tex.z-dn.net/?f=C%3D2%5Cpi%20r)
We have the area of a circle
![A=121y^2\pi ft^2](https://tex.z-dn.net/?f=A%3D121y%5E2%5Cpi%20ft%5E2)
Substitute to the formula and solve for r:
<em>divide both sides by π</em>
![r^2=121y^2\to r=\sqrt{121y^2}\\\\r=11y\ ft](https://tex.z-dn.net/?f=r%5E2%3D121y%5E2%5Cto%20r%3D%5Csqrt%7B121y%5E2%7D%5C%5C%5C%5Cr%3D11y%5C%20ft)
Put the value of r to the formula of a circumference:
![C=2\pi(11y)=22y\pi ft](https://tex.z-dn.net/?f=C%3D2%5Cpi%2811y%29%3D22y%5Cpi%20ft)