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defon
4 years ago
5

A = 3(B + C) a.b=(a.c)/3 b.b=(3a.c)/3 b.=(a.3c)/3 solve for b

Mathematics
1 answer:
rusak2 [61]4 years ago
4 0
B = A over 3 so put the three under the a and -c . a =3 (B+C) divide both sides by 3. A over 3 a equals B plus c subtract C from both sides. B = A over 3 - C I hope this helps so B = (A/3) - C remember divide both sides by 3 subtract C from both sides
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The vertex is found at

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