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irga5000 [103]
3 years ago
5

A circle has a diameter of 18 feet. Which following is closest to the l circumference of the circle?

Mathematics
2 answers:
lara [203]3 years ago
6 0

circumference =2×pi×r

18/2=9(r)

so...2×pi×9

=54..5

Reika [66]3 years ago
5 0

Answer:

56.5 ft

Step-by-step explanation:

We define the number π as the ratio between the circumference and diameter of a circle: π = c/d. Rearranging this equation gives us one for the circumference: c = πd. Using an approximation of π ≈ 3.14 and our value of d = 18 feet, we can find that c = 3.14(18) = 56.52 ft, or 56.5 ft, rounded to the nearest tenth.

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Genrish500 [490]

Answer:

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Step 1: Add 4 to both sides.

−4x−4+4=12+4

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Step 2: Divide both sides by -4.

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Answer:

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8 0
3 years ago
A survey shows that 10% of the population is victimized by property crime each year. A random sample of 527 older citizens (65 y
jekas [21]

Answer:

The data provide sufficient evidence that older people are more likely to be victimized.

Step-by-step explanation:

H 0 : P = 0.10

H 1 : P > 0.10 (Right tailed test)

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The test statistics

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x = 0.1235 - 0.10 / \sqrt{0.10 * 0.90 / 527}

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7 0
3 years ago
Question is in the picture
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Answer:

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3 0
3 years ago
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