I have no Idea what you are saying sorry
You find the variables, y and x.
x=4
y=4
Hello,
x²-5x-2=0
Δ=5²+4*2=33
==>x= (5-√33)/2 or x=(5+√33)/2
3,4,7 just plug the x into the equation
<u>Answer: </u>120
Since there is the 100 in the triangle, the other two sides in the triangle are equal to each other. So they are both 40
So 180 - 40 = 120
