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hichkok12 [17]
3 years ago
15

What is the circumference of this circle? Use π ≈ 3.14. Round your answer to the nearest tenth of a centimeter

Mathematics
1 answer:
Umnica [9.8K]3 years ago
3 0
The formula of the circumference of a circle is:

C = 2 * π * r

Since r is not given, I will use all choices to find the radius. Whatever circumference corresponds to the correct radius of the problem, then it is the correct one.

a) 22.0 cm = 2 * 3.14 * r ⇒ r = 22.0 cm / 6.28 ⇒ r =   3.50 cm
b) 69.1 cm = 2 * 3.14 * r ⇒ r = 69.1 cm / 6.28 ⇒ r = 11.00 cm
c) 34.5 cm = 2 * 3.14 * r ⇒ r = 34.5 cm / 6.28 ⇒ r =   5.49 cm
d) 17.3 cm = 2 * 3.14 * r ⇒ r = 17.3 cm / 6.28 ⇒ r =   2.75 cm
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Answer:

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Step-by-step explanation:

If a population is decreasing by 8% we can multiply the population by 92% (1-.08)

which means we have the following equation

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we want to know when the population will be 10,000 so we write

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a rule we have is

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compute this and get

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Step-by-step explanation:

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