The given equation is :
![R = 5(\frac{c}{a} -0.3)](https://tex.z-dn.net/?f=R%20%3D%205%28%5Cfrac%7Bc%7D%7Ba%7D%20-0.3%29)
Divide both sides by 5
![\frac{R}{5} =\frac{c}{a} -0.3](https://tex.z-dn.net/?f=%5Cfrac%7BR%7D%7B5%7D%20%3D%5Cfrac%7Bc%7D%7Ba%7D%20-0.3)
Add 0.3 to both sides.
![\frac{R}{5} +0.3=\frac{c}{a}](https://tex.z-dn.net/?f=%5Cfrac%7BR%7D%7B5%7D%20%2B0.3%3D%5Cfrac%7Bc%7D%7Ba%7D)
Multiply a on both sides.
![a(\frac{R}{5}+0.3)= c](https://tex.z-dn.net/?f=a%28%5Cfrac%7BR%7D%7B5%7D%2B0.3%29%3D%20c)
Hence
... Answer
Thank you for posting your question here at brainly. I think your question is incomplete. I will assume that you are looking for the equation of the above situation. I can only form an equation from this: y = 7.5x + 10. I hope the answer will help.
Area= pi r squared
d=4 r=2
a= 3.14*2*2
a=3.14*4
a=12.56
i think the answer is 12.56
Answer: 40°
Step-by-step explanation:
You add 90° for the right angle and 50° for the other and subtract from 180°