Answer: 30
Step-by-step explanation:
Since this is a right triangle, the pythagorean theorem says
[tex]x^2 + 16^2 = 34^2[/tex]
So if you rearrange for [tex]x[/tex] you get
[tex]x = \sqrt{34^2 - 16^2} = \boxed{30}[/tex].
