-8 - 7 - 16 - 14 + 2 = -43
I think it’s the third one. Hope that helps!
Answer:
65 degrees
Step-by-step explanation:
<u>1) Find the value of x</u>
The sum of all the interior angles of a triangle is always 180 degrees. Knowing this, we can construct the following equation:
![(2x-5)+(115-x)+x=180](https://tex.z-dn.net/?f=%282x-5%29%2B%28115-x%29%2Bx%3D180)
Open up the parentheses
![2x-5+115-x+x=180](https://tex.z-dn.net/?f=2x-5%2B115-x%2Bx%3D180)
The two x's cancel out
![2x-5+115=180\\2x+110=180](https://tex.z-dn.net/?f=2x-5%2B115%3D180%5C%5C2x%2B110%3D180)
Subtract 110 from both sides
![2x+110-110=180-110\\2x=70](https://tex.z-dn.net/?f=2x%2B110-110%3D180-110%5C%5C2x%3D70)
Divide both sides by 2
![2x/2=70/2\\x=35](https://tex.z-dn.net/?f=2x%2F2%3D70%2F2%5C%5Cx%3D35)
Therefore, x is equal to 35.
<u>2) Find the value of <C</u>
![C=2x-5](https://tex.z-dn.net/?f=C%3D2x-5)
Plug 35 into the equation as x
![C=2(35)-5\\C=70-5\\C=65](https://tex.z-dn.net/?f=C%3D2%2835%29-5%5C%5CC%3D70-5%5C%5CC%3D65)
Therefore, the value of angle C is 65 degrees.
I hope this helps!
Answer:
5 1/4
Step-by-step explanation: