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Olenka [21]
3 years ago
13

If the example is y= -2x and y= x+3 Does the point (2,5) make either equation true?

Mathematics
2 answers:
3241004551 [841]3 years ago
4 0
The second one is true
skelet666 [1.2K]3 years ago
3 0

Answer:

the second one is true

Step-by-step explanation:

5=-4. 2nd one 5=5

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Step-by-step explanation:

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Find the value of this expression if x = -9.<br> x2 + 3<br> x +6
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Answer:

Step-by-step explanation:

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7 0
3 years ago
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
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