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Anna11 [10]
4 years ago
12

Are assocative properties true for all intergers? explain​

Mathematics
1 answer:
Fudgin [204]4 years ago
4 0

No, Associative proporties are not true for all integers. The deffinition for integer (n) 1. one of the positive or negative numbers 1, 2, 3, act., or zero. Compare whole number

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Find the value of b.
Nesterboy [21]

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)
  2. \overline{AB} \cong \overline{BC} (tangents drawn from a common external point are congruent)
  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}

This means the measure of minor arc AC is 130^{\circ}, and thus b=360^{\circ}-130^{\circ}=\boxed{230^{\circ}}

7 0
2 years ago
Simplify fully WITHOUT using a calculator (3√2 -12)(2√2+1)​
natita [175]

Answer:

33\sqrt{2} +12

Step-by-step explanation:

(3\sqrt{2}  - 12)(2\sqrt{2} + 1)

6\sqrt{2}  + 3\sqrt{2} -12(2\sqrt{2})+12

9\sqrt{2}+24\sqrt{2}+12

33\sqrt{2} +12

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