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Korolek [52]
3 years ago
15

The diameter of a semicircle is 2 kilometers. What is the semicircle's perimeter? Use 3.14 for ​. 50 POINTS OR WHOEVER CAN HELP

PLEASE
Mathematics
1 answer:
Nina [5.8K]3 years ago
5 0

Answer:

12.57 km

happy to help

please mark brainliest

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Correo electrónico Andrew tarda 720 segundos en ducharse. Pasa otros 420 segundos ¿Cuántos minutos se tarda Andrew en ducharse y
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Explicación paso a paso:

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Step-by-step explanation:

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explain how it is possible that all proportional relationships are linear functions but not all linear functions are proportiona
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3 years ago
The sum of an infinite geometric series is three times the first term. Find the common ratio of this series.
adelina 88 [10]

Answer:

\frac{2}{3}

Step-by-step explanation:

The sum of an  infinite geometric series is expressed according to the formula;

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If the sum of an infinite geometric series is three times the first term, this is expressed as S_\infty = 3a

Substitute S_\infty = 3a into the formula above to get the common ratio r;

3a = \dfrac{a}{1-r} \\\\

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open the parenthesis

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<em>Hence the common ratio of this series is </em>\frac{2}{3}<em></em>

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3 years ago
The endpoints of one side of a regular pentagon or -1, four and two, three what is the perimeter of the Pentagon
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Answer:

Step-by-step explanation:

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8 0
2 years ago
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