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kari74 [83]
3 years ago
5

Find the area and the circumference of a circle with radius 3 cm.

Mathematics
1 answer:
pshichka [43]3 years ago
6 0

1. Observe problem

Solve for the area and Circumference of a circle who's radius is 3 cm

Area for circle formula:

pi*r^2=

9pi

I simplicity is needed, 9 pi is around

28.2743338823cm^2

Circumference for circle formula: 2*pi*r

which is

6pi

if simplicity is again needed, its around

18.8495559215cm

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Answer:

-12b+6c+18

Step-by-step explanation:

you just need to add the same numbers and stuff

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hope this helps ^^

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2 years ago
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Are simplified ratios written in units?
sweet-ann [11.9K]

Answer:

No

Step-by-step explanation:

Simplified ratios are not written in units.

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Use Word to documents your comparison of the two years and explain your findings in at least two paragraphs. Including: Explain
pickupchik [31]

In statistics, the standard deviation deviation may be a measure of the quantity of variation or dispersion of a group of values. The margin of error may be a statistic expressing the number of sampling error within the results of a survey. The correlation could be a statistical measure of the strength of the connection between the relative movements of two variables.

Given nothing and that we need to explain standard deviation. margin of error, correlation coefficient .

Standard deviation

In statistics, the standard deviation may be a measure of the number of variation or dispersion of a group of values. an occasional variance indicates that the values tend to be near the mean of the set, while a high variance indicates that the values are detached over a wider range.

Formula: \sqrt{(x-x bar)^{2}/N }

where x bar is mean and N is size of population.

Margin of error

The margin of error may be a statistic expressing the quantity of sampling error within the results of a survey. The larger the margin of error, the less confidence one should have that a poll result would reflect the results of a survey of the complete population.

Formula for M=z*s/\sqrt{n}

here z is z value of Z score , s is variance , n is that the sample size.

Correlation coefficient

In statistics, the Pearson parametric statistic ― also called Pearson's r, the Pearson product-moment parametric statistic, the bivariate correlation, or colloquially simply because the coefficient of correlation ― could be a measure of linear correlation between two sets of information.

Formula=∑(x_{i} -x bar)(y_{i} -y bar)/\sqrt{}∑(x_{i} -x bar)^{2}∑(y_{i}-ybar) ^{2}

Learn more about correlation coefficient at brainly.com/question/4219149

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Nikolay [14]

Answer:

27

Step-by-step explanation:

19+22+46+24+37+16+19+33=216

216/8=27

7 0
3 years ago
If two angles are vertical and one of the angles measures 65 degrees, what is the measurement of the other angle?
Kaylis [27]

Answer:

65 degrees, because vertical angles are always congruent.

Step-by-step explanation:

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3 years ago
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