What is the approximate area of a circle with diameter 6?

Mathematics

1 answer:

BaLLatris [955]2 years ago

7 0

Answer: 28.27

Step-by-step explanation:

First, you can turn the diameter into a radius, giving you 3. Since the equation of an area in a circle is A=πr^2, you must square 3, giving you 9. Now you must multiply 9 with Pi, which is 3.14159265358, but just 3.14 for short. With that, you get about 28.27 as area.

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Ariel's desk weighs 53 kilograms. What is the weight of her desk in pounds? Round your

Lyrx [107]

Answer:

116.6 pounds

Step-by-step explanation:

Set up a proportion where x is the weight of her desk in pounds:

$\frac{2.2}{1}$ = $\frac{x}{53}$

Cross multiply:

x = 116.6

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2 years ago

Determine whether the bolded numerical value is a parameter or a statistic. Explain your reasoning.The average annual salary of

sergey [27]

Answer: F. Statistic, because the data set of salaries of 50 employees is a sample.

Step-by-step explanation:

A parameter gives measure of a characteristic for the entire population where as a statistic gives measure of a characteristic for the subset of population (sample).

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It means the sample size = 50 and the sample mean salary= $54,000.

i.e $54,000 is giving the measure for mean salary for the sampled 50 employees.

It means $54,000 is a statistic .

Hence, the correct answer is option (F).

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3 years ago

To get the echo of a positive integer, we write it twice in a row without a space. For example, the echo of 2022 is 20222022. Is

Lynna [10]

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<h3>What echo number is a perfect square</h3>

An echo number has a perfect square if its square root is also a natural number. After some iterations we found that echo number 20222022202220222022 is a perfect square:

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