Find the value of x. round your answer to the nearest tenth.

So for this, we will be using the pythagorean theorem, which is  . 9 is being used instead of 18 because we are using only one half of this triangle.

Firstly, apply the numbers to their place 

Solve the exponents to get 

Add up the left half of the equation to get

And lastly, square root both sides of the equation, and your answer should be