Answers:
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<span>
Angle B: 81°</span> .
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Angle C: 99°</span> .
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Angle D: 81°</span> .
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Explanation:</span>
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<span>
Angle B:</span>
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Given: m∡A = 99° ;
∡A and ∡B are "supplementary angles" ;
and supplementary angles add up to 180°.
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<span> → So, m∡B = 180 − 99 = 81° </span>.
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Angle C: 99° .
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Explanation:
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Given: m∡A = 99° .
∡A and ∡C are "vertical angles". Vertical angles are congruent.
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→ So m∡A = m∡C = 99° .
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Angle D: 81° .
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Explanation:
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∡B and ∡D are vertical angles. Vertical angles are congruent.
As previously determined above, m∡B = 81° .
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→ So, m∡D = m∡B = 81° .
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Answer:
y=3/2x-5/2
Step-by-step explanation:
1.find the slope
y2-y2/x2-x1
2-(-1)/3-1
2+1/3-1
3/2 slope (m)
2.y-y1=m(x-x1)
y-(-1)=3/2(x-1)
y+1=3/2x-3/2
y=3/2x-3/2-1
y=3/2x-5/2
35 divided by 12 is 2
So D is the answer
