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amid [387]
3 years ago
5

4c to the power of 2 + 6c - 3v to -3 the power of 2 - 2c - 3

Mathematics
1 answer:
madreJ [45]3 years ago
3 0

Answer:

I knownit

Step-by-step explanation:

Just message me personally the answer is very big.

With the explanation so message me good

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(a) An angle measures 140 . What is the measure of its supplement? (b) An angle measures 36 . What is the measure of its complem
Lesechka [4]
A: 40 because supplements add up to 180
B: 54 because complements add up to 90
6 0
4 years ago
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
I need help fining X. I keep getting a negative number
KIM [24]

Answer:

3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Over a period of 3 years, the company’s sales of biscuits increased from 15.6 million packets to
horsena [70]

Answer:

33%

Step-by-step explanation:

So you Subtract 20.8 by 15.6 and you get 5.2.

Then you divide 5.2 by 15.6 getting you .33. Then you'll make it into a percentage getting you 33%. This could be wrong but let me know.

I hope this helps! ^^

5 0
3 years ago
Celia is comparing two different antivirus programs.
kipiarov [429]
I had this question on my test>>>>>>>>> v=5y+22


HOPE THIS helps
6 0
3 years ago
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