Answer:
or
or 7.746...
Step-by-step explanation:
Use the Pythagorean Theorem because it is a right triangle. you would get
, and using the method of solving one-variable equations, you would do 64 - 4, which is 60, and then to further simplify, you would get the square root of 60.
I think you forgot to attach the picture w/ the question . .
The domain is all real numbers.