Answer:
26.51
Step-by-step explanation:
[tex]a^{2} [/tex] + [tex]b^{2} [/tex] = [tex]c^{2} [/tex]
[tex]9^{2} [/tex] + [tex]b^{2} [/tex] = [tex]28^{2} [/tex]
81 + [tex]b^{2} [/tex] = 784
-81. =. -81
[tex]b^{2} [/tex]. = 703
[tex]\sqrt{b} [/tex] = [tex]\sqrt{703} [/tex]
b = 26.51 (rounded)
