Please help
u have to the Pythagorean Theorem

Answer:
13.7
Step-by-step explanation:
[tex]x^2 + 30^2 = 33^2[/tex]
[tex]x^2 + 900 = 1089[/tex]
[tex]x^2 = 189[/tex]
[tex]x = \sqrt{189}[/tex]
[tex]x = 13.7[/tex]