4 years ago

Plz explain and prove the triangles congruence.

Mathematics

1 answer:

Ad libitum [116K]4 years ago

5 0

Answer:

(3) ∠BCA ≅ ∠DAC

Step-by-step explanation:

BC and AD are parallel. AC is a transversal line passing through both lines. That means ∠BCA and ∠DAC are alternate interior angles. Therefore, they are congruent.

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Step-by-step explanation:

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Critical value : $z_{\alpha/2}=1.645$

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Standard deviation : $\sigma=35,000$

The confidence interval for population mean is given by :_

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$

$= 150,000\pm (1.645)\dfrac{35000}{\sqrt{49}}\\\\\approx150,000\pm8225\\\\=(150,000-8225,150,000+8225)=(141,775,158,225)$

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3 years ago

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Select the proper inverse operation to check the answer to 25 − 13 = 12. A. 12 × 13 = 25 B. 12 + 13 = 25 C. 12 × 25 = 13 D. 12 ÷

Olenka [21]

B. 12 + 13 = 25 is the answer

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4 years ago

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3 years ago

Find the measures of angles A,B,C and D

Eddi Din [679]

Answer:

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Step-by-step explanation:

angle A = angle B so

180-50=130

130/2=65

then 180-65=115

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