Answer:
So like I shouldn't represent with a letter? I should use 2?
Answer:
So we know that all angles add up to 360. We first subtract it by 81
Now we have 279 as an answer. But since 2w + 81 cant be 360 because it doesn't add up because you have to spaces in between them. It adds up to 180 not 360
<h2><u>
From your question its 180</u></h2>
7x²=9+x
so
for
0=ax²+bx+c

so
7x²=9+x
mins 9 from both sides and minus x
7x²-1x-9=0
a=7
b=-1
c=-9


so the 4th one
Answer:
If we solve any such equation and get the answer as 0 = 0 so this means that system of equations has infinite solutions.
Step-by-step explanation:
<h2>Hope it helps you!! </h2>
A fake link ........................