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Paha777 [63]
3 years ago
7

Pls help!!! giving brainliest

Mathematics
1 answer:
Margaret [11]3 years ago
6 0

Answer:

He should use a counterclockwise rotation about point <u><em>C</em></u> with an angle of rotation of (<u><em>Show me the options for me to give you an answer!)</em></u>

<u><em></em></u>

Step-by-step explanation:

Please give brainliest, hope this helps!

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"A laboratory tested 73 chicken eggs and found that the mean amount of cholesterol was 230 milligrams with LaTeX: \sigmaσ = 17.4
Scrat [10]

Answer:

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{17.4}{\sqrt{73}} = 3.99

The lower end of the interval is the sample mean subtracted by M. So it is 230 - 3.99 = 226.01

The upper end of the interval is the sample mean added to M. So it is 230 + 3.99 = 233.99.

The 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is between 226.01 and 233.99 milligrams.

4 0
3 years ago
-7 2/3 + (-5 1/2) + 8 3/4
Dennis_Churaev [7]

Answer:

-4.41666666667

Step-by-step explanation:

7 0
3 years ago
A rectangular garden has length and width as given by the expressions below.
Tom [10]

Answer:

P = -12xy - 56y - 42x + 8

Step-by-step explanation:

                                    P = 2L + 2W

P = 2(4 - 7(3x + 4y)) + 2(3x(-2y))

P = 8 - 14(3x + 4y) + 6x(-2y)

P = 8 - 42x - 56y - 12xy

                              P = -12xy - 56y - 42x + 8

3 0
3 years ago
Read 2 more answers
Solve the equation.<br><br> n – 40 – 26 = –35
viva [34]

Answer:

Step-by-step explanation:

n - 66 = -35

n = 31

8 0
3 years ago
Read 2 more answers
Paula runs a stable. 20 horses currently board at the stable, and 8 of them are bay.
FrozenT [24]

Answer:

40% chance

Step-by-step explanation:

Take the number of horses total and divide the number of bay horses.

5 0
3 years ago
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