Respuesta :

Answer:

x=5.7

Step-by-step explanation:

a^2+b^2=c^2

7^2+b^2=9^2

49+b^2=81

b^2=32

b=5.7

Answer:

b=5.7

Step-by-step explanation:

a^2+b^2=c^2

7^2+b^2=9^2

49+b^2=81

b^2=32

b=5.7

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