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laiz [17]
4 years ago
12

Write the standard form of the equation of the circle with the given center and radius.center​ (0,0), requals=11

Mathematics
1 answer:
Serga [27]4 years ago
3 0
X^2 + y^2 = 11^2  or  x^2 + y^2 = 121 is the equation.
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Diano4ka-milaya [45]

Answer:

n=(\frac{2.262(3)}{0.25})^2 =736.79 \approx 737

So the answer for this case would be n=737 rounded up to the nearest integer

Step-by-step explanation:

We have the following info given:

\bar X = 12 the sample mean

s = 3 the sample deviation

n = 10 represent the sample size

The degrees of freedom are given by:

df =n-1 =10-1=9

The margin of error is given by this formula:

ME=t_{\alpha/2}\frac{s}{\sqrt{n}}    (a)

And on this case we have that ME =0.25 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{t_{\alpha/2} s}{ME})^2   (5)

The confidence level is 95% and the critical value for this case would be given by t_{\alpha/2}=2.262, replacing into formula (5) we got:

n=(\frac{2.262(3)}{0.25})^2 =736.79 \approx 737

So the answer for this case would be n=737 rounded up to the nearest integer

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3 years ago
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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