a. x=17
b. x=13
c. x=119
d. x=169

Answer:
the answer is: [tex]x=13[/tex]
Step-by-step explanation:
We get the answer using Pitagoras.
[tex]5^2+12^2=x^2[/tex]
so
[tex]x=\sqrt{5^2+12^2}=\sqrt{25+144}=\sqrt{169}=13[/tex]