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tatyana61 [14]
2 years ago
6

PLEASE HELP! I HAVE A CHAPTER TEST TM ON THIS

Mathematics
2 answers:
KIM [24]2 years ago
5 0

Answer:

a{}^{2}  -  {b}^{2}  =  {c}^{2}

12 {}^{2}  - (3 \sqrt{7})^{2}

144 - 63 = 81

\sqrt{80 }  = 9

denis23 [38]2 years ago
4 0

Answer:

sorry for dirty handwriting

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