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ElenaW [278]
3 years ago
11

The radius of a circle is 8 cm Calculate the circumference of the circle [Use pi r = 3.1]

Mathematics
1 answer:
denis-greek [22]3 years ago
8 0

Answer:

49.6cm

Step-by-step explanation: First you have to find the diameter of the circle by multiplying the radius by 2.

8x2=16

Then multiply 16 by 3.1

16x3.1=49.6


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frosja888 [35]
Hi there! 

Your question: 

8.5 + 49(1-2.5k)=24.5

My answer: 

8.5 + 4(1-2.5k) = 24.5 >>>>>>> first, you have to distribute

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12.5 - 10k = 24.5 >>>>>> now, we are going to subtract 12.5 on both sides 

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k = -1.2


Hope this helps you!


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Step-by-step explanation:

so you divide

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