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Anika [276]
3 years ago
6

WRITE IN STANDARD FORM. 3z - 9z^3 - 8z^5 + 2z^2

Mathematics
2 answers:
Inga [223]3 years ago
8 0
In standard for the powers decend so the answer would be -8z^5-9z^3+2z^2+3z
Blizzard [7]3 years ago
3 0
4z^4 should be the right answer hope this helps
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Suppose that the population of the scores of all high school seniors who took the SAT Math (SAT-M) test this year follows a Norm
Vlad1618 [11]

Answer:

Confidence =1-\alpha=1-0.01=0.99

And then the confidence level would be given by 99%

Step-by-step explanation:

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

X \sim N(\mu, \sigma)

The distribution for the sample mean is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

\bar x =512 represent the sample mean

\sigma=100 represent the population standard deviation

n= 100 sample size selected.

The confidence interval is given by this formula:

\bar X \pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}   (1)

The marginof error for this case is given by Me=25.76. And we know that the formula for the margin of error is given by:

Me=z_{\alpha/2} \frac{\sigma}{\sqrt{n}}

25.76=z_{\alpha/2} \frac{100}{\sqrt{100}}

And we can find the critical value z_{\alpha/2} like this:

z_{\alpha/2}=\frac{25.76(\sqrt{100})}{100}=2.576

And we know that on the right tail of the z score =2.576 we have \alpha/2 of the total area. We can find the area on the right of the z score using this excel code:

"=1-NORM.DIST(2.576,0,1,TRUE)" or using a table of the normal standard distribution, and we got 0.004998=\alpha/2, so then \alpha=0.00498*2=0.009995 \approx 0.01, and then we can find the confidence like this:

Confidence =1-\alpha=1-0.01=0.99

And then the confidence level would be given by 99%

8 0
3 years ago
In the data set below, what is the lower quartile?<br> 1<br> 2<br> 3<br> 3<br> 7<br> 8<br> 8
Levart [38]
Is this all the question???
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3 years ago
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The appropriate response is second and fourth.Natural assets are utilized to pay off worldwide obligation and feeble government frameworks obstruct monetary improvement are the elements portray the financial circumstance in Sub-Saharan Africa.
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3 years ago
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stiv31 [10]
You divide 44 by 9 and get 4.89 so u can round up either to the 8 or the 4 is you could get either 4.9 or 5
4 0
3 years ago
Read 2 more answers
In the figure p || q...​
liberstina [14]
Answer: d. 102

Why
If 6 is 78 then 5 is 102 and since 1,3,5,and 7 are equal 3 is 102. [180-78=120(180 is the straight line)]
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