amyyycarmona amyyycarmona

29-04-2019
Mathematics

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If AC = 15 centimeters, and BC = 12 centimeters, which does AB equal

If AC 15 centimeters and BC 12 centimeters which does AB equal class=

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justicehall2002 justicehall2002

29-04-2019

The pythagorean theorem says that a² + b² = c²

You're given the b and the c so substitute the values in: a² + 12² = 15²

a² + 144 = 225; subtract 144 from both sides

a² = 81; square root each side

a = 9, or choice C

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