If w is real then we need ignore negative sign and consider it as a mod value. So the answer will be 2
Answer:

Step-by-step explanation:
Use the Pythagorean theorem. 
a and b are the two side lengths
c is the hypotenuse (value across from the right angle)
Plug in the values that you are given.

Solve for x


x=

A Hope Fully Im Right / Im pretty sure thats the answer
Answer:
x= 105/4
x=4
Step-by-step explanation: