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Gre4nikov [31]
2 years ago
15

The diameter of a circle is 14 in. Find its area in terms of

Mathematics
1 answer:
Luda [366]2 years ago
7 0

Answer:

Given - Diameter of circle = 14 in

To find - Area of circle

Solution -

Diameter= 2 × Radius

14 = 2 × R

14/2 = R

7 = R

Area of circle= π r^²

22/7 × 7 × 7

22 × 7

154

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A study of the career paths of hotel general managers sent questionnaires to an SRS of 280 hotels belonging to major U.S. hotel
const2013 [10]

Answer and Step-by-step explanation:

we have the following data:

Point estimate = sample mean = \ bar x = 12.39

Population standard deviation = \ sigma = 3.7

Sample size = n = 177

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alpha = 1 - 0.90 = 0.10

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we replace:

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b) margin of error with a 99% confidence interval

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Margin of error = E = Z \ alpha / 2 * (\ sigma / \ sqrtn)

we replace:

E = 2,576 * (3.7 / \ sqrt177)

Outcome:

E = 0.72

c) A larger confidence interval value will increase the margin of error.

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Hey I'm Chloe Can you Help Me, I will give Brainlest, Thank you :)
almond37 [142]

Answer:

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Step-by-step explanation:

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