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3 years ago

What is the length of MN

Mathematics

2 answers:

Ghella [55]3 years ago

4 0

Answer:

D. 12

Step-by-step explanation

You know this is an isoceles triangle because the two base angles on congruent. That means the two sides are equal. So, 3x = x+8. If you plug in each of the answer choices, you'll notice that 4 fits the equation. If 4 equals x, 4 times 3 equals 12 and on the other side, 4+8 also equals 12. Therefore, to find the length of MN, you would just need to do 4+8 which equals 12

jek_recluse [69]3 years ago

3 0

Answer:the length of segment MN is 12

Step-by-step explanation:

because the angles at the bottom of each segment are equal, the length of each segment is equal as well, so set you equation as 3x=x+8, subtract x from 3x then divide 8 by 2 which equals 4. (x=4) then plug in the value of x into x+8 and you have 12

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Please give me the answers to all three I will mark u brilliant

elixir [45]

Answer:

First know the formula for the area of a circle;

Where 'π' represents pi(3.14 or 22/7), and 'r' stands for the radius being squared.

For the first problem, we can see that 12 is our diameter.

And to find the radius, we need to find 1/2 of the diameter (half of the diameter), so;

D/2 = R

Replace with actual values;

12/2 = 6, 6 is our radius.

Now we plug this into our formula:

A = π $r^{2}$

A = 3.14(6^2)

A = 3.14(36)

A = 113.04 centimetres is the area of the circle.

For the second problem, we can see that 18 is our diameter.

And to convert the diameter into the radius, we do what we did to the past problem, find 1/2 of the diameter.

So;

D/2 = R

18/2 = 9, 9 is our radius.

Now we plug this into our formula:

A = π $r^{2}$

A = 3.14(9^2)

A = 3.14(81)

A = 254.34 inches is the area for this circle.

For the third problem, we can see that our radius is already given, 5.

So now we just simply and easily plug this into our formula;

A = π $r^{2}$

A = 3.14(5^2)

A = 3.14(25)

A = 78.5 meters is the area for this circle.

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When working through limit problems, why must you write the limit statement every time until you evaluate the equation?

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Solnce55 [7]

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Lady_Fox [76]

Answer:

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Step-by-step explanation:

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Gekata [30.6K]

Answer:

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Step-by-step explanation:

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