Respuesta :

Answer:

b = 3

Step-by-step explanation:

[tex]a^2+b^2=c^2[/tex]

[tex]12^2+b=15^2[/tex]

[tex]15^2 - 12^2 = 3[/tex]

[tex]b = 3^2[/tex]

hope this helps :)

Answer:

the answer is b=3

hope this helped bye