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ivann1987 [24]
2 years ago
7

Plz help me I am timed : (

Mathematics
2 answers:
enot [183]2 years ago
8 0
I think that it is 60
-BARSIC- [3]2 years ago
5 0
The answer to this question is 260
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Calculat the length of the circumference of a circle with diameter of 8cm.
mr_godi [17]
Hello there!

The formula for finding the circumference of a circle is 2\pir (or 2*3*r in your terms). Although we don't have the radius yet, we can certainly find it pretty easily. Keep in mind that the radius will always be half the diameter. So, let's find the radius.

8 / 2 = 4; now we have everything we need to solve for the circumference.

2*3*4 is our expression. Now let's simplify it.
2 * 3 = 6
6 * 4  = 24

Your circumference is 24cm.

I hope this helps!
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3 years ago
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Dmitrij [34]

y = - 2x + 7; slope m = -2

Parallel lines, slope is the same

So y = -2x + b

b = y + 2x

Passing thru (4 , 1)

Plug in

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Equation

y = - 2x + 9

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Step-by-step explanation:

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I think it is Letter B.............

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Justin watched 4/8 of his movie before dinner and 1/8 of his movie after dinner how much of his movie does he have left to watch
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