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rewona [7]
1 year ago
14

ZA and B are supplementary angles. If mA (x - 9)° and

Mathematics
1 answer:
Verizon [17]1 year ago
5 0

The measurement of  ∠B  is 168°

Given,

In the question:

Angle A and Angle B are supplementary angles.

If mA (x - 9)° and m/B= (7x + 21)°

To find the measure of ∠B

Now, According to the question;

What are supplementary angles?

Two angles are Supplementary when they add up to 180 degrees.

Now, ∠A+∠B = 180°

So,

⇒(x - 9)˚+(7x + 21)°=180°

=> 8x +12 = 180°

=> 8x = 180° - 12

=> 8x = 168

=> x = 168/8

=> x = 21

For the measure of ∠B :

∠B  = (7x + 21)

∠B = 7 x 21 + 21

∠B  = 168°

Hence, The measurement of  ∠B  is 168°

Learn more about Supplementary angles at:

brainly.com/question/13045673

#SPJ1

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Answer:

160

Step-by-step explanation:

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7 0
3 years ago
What is −5/6÷9/10 ?<br><br> A −27/25<br><br> B −4/3<br><br> C −25/27<br><br> D −3/4
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Answer and Step-by-step explanation:

\huge\boxed{~~Answer:\frac{-25}{27} ~~}

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Nata [24]

Answer:

The first three terms in the sequence are -4, -2, 0

Step-by-step explanation:

In any sequence n represents the position of the term in the sequence

<u><em>Examples:</em></u>

First term ⇒ n = 1

Second term ⇒ n = 2

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∵ n = 1

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6 0
3 years ago
Anyone help me pls,find the area of each figure(All lines meet at right angles.)​
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Step-by-step explanation:

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Best Regards!

3 0
3 years ago
Give an example of: degree of a polynomial is the highest sum of one of its terms, explain.
yuradex [85]

Example 1  Perform the indicated operation for each of the following.

<span>(a) </span>Add  to 

<span>(b) </span>Subtract   

Solution

(a) Add  to .

The first thing that we should do is actually write down the operation that we are being asked to do.

                                          

In this case the parenthesis are not required since we are adding the two polynomials.  They are there simply to make clear the operation that we are performing.  To add two polynomials all that we do is combine like terms.  This means that for each term with the same exponent we will add or subtract the coefficient of that term.

 

In this case this is,

           

[Return to Problems]

 

(b) Subtract  from .

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