Find x, the third side of the triangle.

5

Step-by-step explanation:

By using the Pythagorean theorem, you can solve for x

a^2 + b^2 = c^2

Where in this scenario a = 12 and c = 13.

B isn't known, so you use the other bits of information in the Pythagorean theorem, which will give you 5

12^2 + 5^2 = 13^2

169 = 169

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

a

step-by-step explanation: