Answer:
17.5
Step-by-step explanation:
Pythagorean Theorem is a^2 + b^2 =c^2
a= 9 , b= 15, c= x
9^2 + 15^2 = c^2
[tex]\sqrt{306}[/tex]= c^2
c= 17.493 or 17.5 rounded to the nearest tenth
