Answer:
C. Sqrt(12^2+9^2)
Step-by-step explanation:
Pythagorean theorem is
x^2+y^2=z^2
So solving for z
z=sqrt(x^2+y^2)
z=sqrt(9^2+12^2)
Bloody nose again check lol
3x + 4y is simplified
false
x=4andy=7
2×4+7 isnot equal to 7