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vekshin1
3 years ago
14

Another question i will give brainlilest!

Mathematics
1 answer:
Strike441 [17]3 years ago
5 0

Answer:

2π

Step-by-step explanation:

Area = πr^2

        = π2^2

        = 4π

4π is the area of the whole circle, so divide it in half to get the semicircle.

        <u>= 2π</u>

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I am not sure if I understand the question that clearly but if what I think is correct is that you need to prove that 2 and 1 are a system of equations for the following equations so this is how you do that:

With the coordinates (2,1) 2 will be x and 1 will be y because when dealing with coordinates (x,y) is how they are set up.

Next you substitute into the equations and solve:

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So now you find if the equations are true

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Hope this helps :)

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3 years ago
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leonid [27]
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