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Dennis_Churaev [7]
3 years ago
14

Select the correct answer.

Mathematics
1 answer:
Anit [1.1K]3 years ago
4 0

Answer:

C. 21°

Step-by-step explanation:

In triangle ABC, perpendiculars dropped on the sides AB and AC from the ray BD are equal in measure or congruent.

Therefore, ray BD is equidistant from the sides AB and AC.

So, ray BD will be the bisector of angle ABC.

\therefore m\angle ABD = m\angle DBC

(Angle bisector theorem)

\therefore (3x+9)\degree = (45-6x)\degree

\therefore 3x+9 = 45-6x

\therefore 3x+6x = 45-9

\therefore 9x = 36

\therefore x =\frac{36}{9}

\therefore x =4

\therefore (3x+9)\degree = (3*4+9)\degree=(12+9)\degree =21\degree

\implies m\angle ABD=21\degree

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Given the original number n. Multiply the number by 9. Add 99. Divide this sum by 9. Subtract the original number, n, from the q
tangare [24]

Answer:

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Step-by-step explanation:

Hello,

Given the original number n.

\large \boxed{n}

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Divide this sum by 9.

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Subtract the original number, n, from the quotient.

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3 years ago
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iragen [17]

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3 years ago
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makkiz [27]

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Step-by-step explanation:

8 0
3 years ago
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In how many ways can a quality-control engineer select a sample of3 transistors for testing frm a batch of 100 transistors?
Advocard [28]

Answer:

161700 ways.

Step-by-step explanation:

The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.

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While you cannot solve 946x+642y=911 for numerical values of x and y, you can indeed solve 946x+642y=911 first for x and then for y:

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3 years ago
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