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2 years ago

ZA and ZB are supplementary angles. If m_A

Mathematics

1 answer:

KatRina [158]2 years ago

5 0

Answer:

∠A = 107

∠B = 73

Step-by-step explanation:

∠A , ∠B are supplementary. So, ∠A + ∠B = 180

5x + 27 + 5x - 7 = 180

5x + 5x + 27 - 7 = 180 {Combine like terms}

10x + 20=180

10x = 180 -20

10x = 160

x = 160/10

x = 16

∠A = 5x + 27 = 5*16 + 27 = 80 + 27 = 107

∠B = 5x - 7 = 5*16 - 7 = 80 - 7 = 73

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Explanation: $\downarrow\downarrow\downarrow$

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[ Step One ] Remove Parenthesis: (a) = a

$\bold{x^2-9x+2+4x^2-5x+1-\left(5x^2-5\right)}$

[ Step Two ] Simplify $\bold{-\left(5x^2-5\right)}$

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[ Step Three ] Rewrite Equation

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[ Step Four ] Simplify $\bold{x^2-9x+2+4x^2-5x+1-5x^2+5}$

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