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blsea [12.9K]
3 years ago
5

1. Which part of the angle is the vertex? A. Point C B. Point AB C. AB

Mathematics
1 answer:
sineoko [7]3 years ago
4 0

Answer:

a

Step-by-step explanation:

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Find the value of b.
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Answer: 230^{\circ

Step-by-step explanation:

For convenience, I labeled some points as shown in the attached picture.

Also, I assume \overline{AB} and \overline{BC} are tangents to the circle.

  1. \overline{BO} \cong \overline{BO} (reflexive property)
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  3. \angle BAO \cong \angle BCO (right angles are congruent)

Therefore, we know \triangle ABO \cong \triangle CBO by HL.

Thus, by CPCTC,

\angle AOB \cong \angle BOC \implies m\angle BOC=65^{\circ}\\\\\implies m\angle AOC=130^{\circ}

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A chemistry professor who teaches a large lecture class surveys his students who attend his class about how he can make the clas
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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B: from table: 0.2+0.16=0.36; in statement: 1/3=0.33,

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C: 0.07 is the least, so this is supported

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E: from table 0.20 overslept. 0.2 < 1/4=0.25, so this is supported

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