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Ainat [17]
3 years ago
8

Find the circumference of a circle with a radius of 10. Leave in terms of pi

Mathematics
1 answer:
Alexus [3.1K]3 years ago
6 0

The formula of a cirumference of a circle:

C=2\pi r

r - radius

We have r = 10. Substitute:

C=2\pi(10)=20\pi

<h3>Answer: C = 20π</h3>
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2 years ago
Distance between (-10,9) and (-5,2)
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Answer:

8.60 units (3 s.f.)

Step-by-step explanation:

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\sqrt{(y1 - y2)^{2} +  {(x1 - x2)}^{2}  }

Thus using the above formula,

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3 years ago
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We know,                

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Otherwise the series will diverge.

Here, ∑ (9x)^{n} is a geometric series with |r| = | 9x |

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Hence, the given series gets converge for -1/9<x<1/9

And geometric series converges to a/(1-r)

Here, a = 1 and r = 9x

Therefore, a/(1-r) = 1/(1-9x)

Hence, the given series converges to   1/1-9x  for  -1/9<x<1/9

For more information about convergence of series, visit

brainly.com/question/15415793

#SPJ4

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1 year ago
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Answer:

B is the right answer

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