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3 years ago

Find the circumference of the circle .the diameter is 6cm

Mathematics

2 answers:

Vinvika [58]3 years ago

5 0

Answer:

18.84cm

Step-by-step explanation:

There is a formula which for the diameter is pie (3.14) times the diameter. Now if you have the radius it would be pie (3.14) times 2 times whatever the radius would be. Now you could use either formula for this, just divide the diameter by two to get 3.

So 3x2x3.14=18.84cm

So then you could just multiply 6x3.14 and still get 18.84cm

worty [1.4K]3 years ago

4 0

Answer: 6π cm

Step-by-step explanation: To find the circumference of the circle, start with the formula for the circumference of a circle which is shown below.

Circumference = πd

Since we are given that the diameter of the circle is 6 centimeters,

we can plug a 6 in for the diameter in our formula and we have

(π)(6 cm) which is 6π cm.

So the circumference of this circle is 6π cm.

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2 years ago

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denpristay [2]

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<h3>What are the hypotheses tested?</h3>

At the null hypotheses, it i tested if the mean difference remains the same, that is:

$H_0: \mu = 0$

At the alternative hypotheses, it is tested if it has decreased, hence:

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<h3>What is the test statistic?</h3>

The test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

The parameters are:

$\overline{x}$ is the sample mean.

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s is the standard deviation of the sample.

n is the sample size.

The parameters are given as follows:

$\overline{x} = -1.75, s = 7.12, n = 35$ .

Hence the test statistic is given by:

$t = \frac{\overline{x} - \mu}{\frac{s}{\sqrt{n}}}$

$t = \frac{-1.75 - 0}{\frac{7.12}{\sqrt{35}}}$

More can be learned about the t-distribution at brainly.com/question/16162795

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1 year ago

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TiliK225 [7]

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