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Gre4nikov [31]
3 years ago
14

The Rotation R maps all 60° about O the center of the regular hexagon. State the image of B for the following rotation. R 2 o R

-2 =
1.B
2.E
3.O
Mathematics
1 answer:
IRINA_888 [86]3 years ago
4 0
Option 3 is correct i do believe
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Suppose that many large samples are taken from a population and that the
rewona [7]

Answer:

0.22 -1 *0.029 =0.191

0.22 +1 *0.029 =0.249

And the best option would be:

D. (0.191 to 0.249)

Step-by-step explanation:

For this case we know that the mean is:

\bar X = 0.22

And the standard error is given by:

SE = 0.029

We want to construct a 68% confidence interval so then the significance level would be :

\alpha=1-0.68 = 0.32 and \alpha/2 =0.16. The confidence interval is given by:

\bar X \pm z_{\alpha/2} SE

Now we can find the critical value using the normal standard distribution and we got looking for a quantile who accumulate 0.16 of the area on each tail and we got:

z_{\alpha/2}= 1

And replacing we got:

0.22 -1 *0.029 =0.191

0.22 +1 *0.029 =0.249

And the best option would be:

D. (0.191 to 0.249)

5 0
3 years ago
My daugher is trying to <br>Solve -7.8x=-1.56  
Hunter-Best [27]
You would just have to isolate for x
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-1.56/-7.8
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