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Scrat [10]
2 years ago
14

The circumstance of a circle is represented by 2 pie r. If the radius of the circle is double, then the circumference is

Mathematics
1 answer:
yarga [219]2 years ago
7 0

The circumference of the circle is given by C = 2 π r

If the radius of the circle is doubled, then new radius will be r' = 2r.

And new circumference will be C' = 2·π·(2r) = 2·(2 π r) = 2·C

It is clearly visible that new circumference is twice the original circumference i.e. C' = 4 π r

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The council rates are set to rise by 15%. If Teresa pays $950 per year now, what will she pay next year after the rise?
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3 years ago
Answer this pls asap
irina [24]

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Step-by-step explanation:

We need to find the area of the frame itself. the radius of the inner circle is 12, but the frame has a radius of 4. You add 12 and 4 and you get 16. The formula for area of a circle is A=πr^2. So A= 3.14 x16^2. Then you have A= 3.14x 256 and you get 803.84. But we only want the area of the frame, so you have to get the area of the inner circle and subtract. You get A= 3.14 x 12^2. 3.14x144 is 452.16. 803.84-452.16 is 351.68. Hope this helped. :)

3 0
3 years ago
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A school staff meeting had 36 teachers in attendance, 75% of whom were first-year teachers. How many first-year teachers were in
natita [175]

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27

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8 0
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kramer

By analyzing and understanding the graph of the absolute value function, we find that the function evaluated at the x-value equal to 1 is equal to the y-value equal to 3.

<h3>What is the y-value associated to a given x-value of an absolute value function? </h3>

In this problem we find the representation of an absolute value function, where the horizontal axis corresponds to the values of the domain, whereas the vertical axis is for the values of the range. In that picture we must look up for the y-value associated with a given x-value.  

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To learn more on absolute values: brainly.com/question/1301718

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1 year ago
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