Yes it is. Input the numbers into the pythagorean theorem,

and if they equal each other it is a right triangle.
Answer:
D
Step-by-step explanation:
It is irrational because you cant write it as a fraction
I hope this helps you
-3m-4m-8v+5v
-7m-3v
Answer:
Axis of Symmetry: x = 3
Vertex: (3, 5)
Step-by-step explanation:
Use a graphing calc.