HELP!!! It’s due is 20 minutes

Answer:
Step-by-step explanation:
We shall use the pythogorean theorem. So, the hypotenuse is 37 and 15 is a^2.
So, we will have:
[tex]15^2+x^2=37^2[/tex]
Then, we will have:
[tex]225+x^2=1369[/tex]
Then, we will subtract 225 from both sides:
[tex]x^2=1144[/tex]
We will then have:
[tex]\sqrt{4\cdot286} = \sqrt{2^2\cdot286} \text{the 2 gets canceled out and we will get}\\2\sqrt{286}[/tex] which is in simplest form.