pls vote me brainle est i dont think you put picture
Answer is c -3/2 slope and intercept of 1/2
Answer:
<h2>
![a = \frac{8A}{\pi {r}^{2} } + 1 \\](https://tex.z-dn.net/?f=a%20%3D%20%20%5Cfrac%7B8A%7D%7B%5Cpi%20%7Br%7D%5E%7B2%7D%20%7D%20%20%2B%201%20%5C%5C%20)
</h2>
Step-by-step explanation:
![A = \frac{1}{8} \pi {r}^{2} (a - 1) \\](https://tex.z-dn.net/?f=A%20%3D%20%20%5Cfrac%7B1%7D%7B8%7D%20%5Cpi%20%7Br%7D%5E%7B2%7D%20%28a%20-%201%29%20%5C%5C%20)
First of all multiply through by 8 to eliminate the fraction
That's
![8A = 8 \times \frac{1}{8} \pi {r}^{2} (a - 1) \\8 A = \pi {r}^{2} (a - 1)](https://tex.z-dn.net/?f=8A%20%3D%208%20%5Ctimes%20%20%5Cfrac%7B1%7D%7B8%7D%20%5Cpi%20%7Br%7D%5E%7B2%7D%20%28a%20-%201%29%20%5C%5C8%20A%20%3D%20%5Cpi%20%7Br%7D%5E%7B2%7D%20%28a%20-%201%29)
<u>Divide both sides by πr²</u>
![\frac{8A}{\pi {r}^{2} } = \frac{\pi {r}^{2}(a - 1) }{\pi {r}^{2} } \\ a - 1 = \frac{8A}{\pi {r}^{2} }](https://tex.z-dn.net/?f=%20%5Cfrac%7B8A%7D%7B%5Cpi%20%7Br%7D%5E%7B2%7D%20%7D%20%20%3D%20%20%5Cfrac%7B%5Cpi%20%7Br%7D%5E%7B2%7D%28a%20-%201%29%20%7D%7B%5Cpi%20%7Br%7D%5E%7B2%7D%20%7D%20%20%5C%5C%20a%20-%201%20%3D%20%20%5Cfrac%7B8A%7D%7B%5Cpi%20%7Br%7D%5E%7B2%7D%20%7D%20)
Move 1 to the other side of the equation to make a stand alone
We have the final answer as
![a = \frac{8A}{\pi {r}^{2} } + 1 \\](https://tex.z-dn.net/?f=a%20%3D%20%20%5Cfrac%7B8A%7D%7B%5Cpi%20%7Br%7D%5E%7B2%7D%20%7D%20%20%2B%201%20%5C%5C%20)
Hope this helps you
Answer:
subs with credentials get paid $87 per day. subs without credentials get paid $55 per day.
Step-by-step explanation:
let x be the cost subs with credential get paid per day and y be the cost subs without credential get paid per day
so we get
![4x + 6y = 678 \\ 3x + 11y = 866](https://tex.z-dn.net/?f=4x%20%2B%206y%20%3D%20678%20%5C%5C%203x%20%2B%2011y%20%3D%20866)
using simultaneous equation by substitution method you get x=87 and y=55