Respuesta :

Answer: x=7.48 im positive

Answer:

The answer is 7.48.

Step-by-step explanation:

[tex]c^{2} - b^{2}[/tex] = [tex]a^{2}[/tex]

[tex]15^{2} - 13^{2} = a^{2}[/tex]

[tex]225 - 169[/tex] = [tex]a^{2}[/tex]

[tex]56 = a^{2}[/tex]

[tex]\sqrt{56} = \sqrt{a^{2} }[/tex]

[tex]7.48 = a[/tex]