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Dennis_Churaev [7]
3 years ago
5

What is the formula for the circumferences of a circle in terms of r?

Mathematics
1 answer:
Paha777 [63]3 years ago
3 0

Answer: Pi · 2r

Step-by-step explanation:

The standard formula to find the circumference of a circle is Pi times the diameter of the circle. The diameter is 2 times the radius, which is what you're going to use in the formula.

So instead of Pi times the diameter, we have Pi times 2 times the radius. Thus, the formula is Pi · 2r.

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3 years ago
Please help!!! Will mark BRAINLIEST!!!!
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In an equilateral triangle, the measure of each angle is 60 degrees. Then the value of x and y is 17/3 and 65.

<h3>What is the triangle?</h3>

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

In trianlge ΔMNP, PM = 3x - 4, MN = 14, ∠N = 5y - 5.

In an equilateral triangle, all the sides and all the angles are equal.

MN = NP = PM

∠M = ∠N = ∠P

Then we have

   PM = MN

3x - 4 = 14

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We know in an equilateral triangle, the measure of each angle is 60 degrees. Then we have

    ∠N = 60

5y - 5 = 60

    5y = 65

      y = 13

More about the triangle link is given below.

brainly.com/question/25813512

#SPJ1

6 0
2 years ago
The function c(x) = 3x − 4 determines how many cupcakes need to be purchased for a birthday party, where x is the number of kids
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D(c(7))
so 

c(7)=21-4=17

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A box containing 90 tiles weighs 23.4 lbs. How much would 15 tiles weigh?
andrew-mc [135]

Answer:

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x/15 = 23.4/90

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351/90=3.9

7 0
2 years ago
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