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3 years ago

I’m confused on this explain

Mathematics

1 answer:

romanna [79]3 years ago

6 0

Triangles BAD and BCD are congruent by the HL theorem. That is, they have identical length hypotenuses (BD) and one leg is also identical in length to that in the other triangle. (AD ≅ CD)

Since the triangles are congruent, corresponding angles are equal, so ∠CBD = ∠ABD = 28°. The angle you are interested in is the sum of these two angles,

... ∠ABC = 28°+28° = 56°

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The ratio of boys to girls in 8th grade at ESHS is 5:3. Calculate the number of boys if there are 210 girls. What is the total n

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Answer:

350

Step-by-step explanation:

If there are 210 girls, then the number of boys is (210÷3)x7=350.

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3 years ago

(cotx+cscx)/(sinx+tanx)

Butoxors [25]

Answer: $\bold{\dfrac{cot(x)}{sin(x)}}$

<u>Step-by-step explanation:</u>

Convert everything to "sin" and "cos" and then cancel out the common factors.

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3 years ago

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kifflom [539]

Answer: x = 12

Step-by-step explanation:

1. add 5x + 1x which will equal 6x so now your equation is: 6x + 6 = 78

2. subtract 6 from 78 to get 72: 6x = 72

3. divide 72 by 6x to get your answer 12

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