Respuesta :

asmikatke

Answer:

can you please tell us which ones?

Step-by-step explanation:

12. a²+b²=c²

7²+b²= 8²

49+b²=64

b²=64-49

b²= 15

Sq root both sides

b or well X=3.87

13. 4²+x²=8²

16+ײ=64

ײ=48

Sq root both sides

x=6.93

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