Is the area of a semicircle with a diameter of 2x greater than, less than, or equal to the area of a circle with a radius of x?

Mathematics

1 answer:

myrzilka [38]2 years ago

8 0

Answer:

So that the area of circle is 2 pi x^2. So the area of a semicircle with diameter 2x is less than the are of a circle with x radius.

Step-by-step explanation:

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madam [21]

Answer:

x = -3

Step-by-step explanation:

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Can you please show me the steps and solution to this problem?

ANEK [815]

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Answer:

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Step-by-step explanation:

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3 years ago

The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the aver

m_a_m_a [10]

Answer:

The true mean $\mu$ it probably could be larger, smaller, or equal to 22

Step-by-step explanation:

False.

By definition the sample mean is defined as:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}$

For this case the value for the sample size is n =190 and the calculated sample mean is $\bar X=22$ . This value represent the sample and for this case we can't assume that this value represent at all the population as the population mean $\mu$ since we probably have variability from the data of the students at City College.