Answer:
5.7
Step-by-step explanation:
b = [tex]\sqrt{c^{2} } - a^{2}[/tex]
b = [tex]\sqrt{9^{2} } - 7^{2}[/tex]
b = [tex]\sqrt{81 - 49}[/tex]
b = [tex]\sqrt{32}[/tex]
b = 5.656
(You can round it up to the nearest tenth to get 5.7)
(can u give brainly if im right?)
