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pogonyaev
2 years ago
15

5/6 +3/7 give answer as a mixed number

Mathematics
2 answers:
Lyrx [107]2 years ago
5 0

Answer:

1\frac{11}{42}

Step-by-step explanation:

  1. \frac{5}{6} = \frac{35}{42}  
  2. \frac{3}{7} = \frac{18}{42}  
  3. \frac{35}{42} + \frac{18}{42} = \frac{53}{42}  
  4. \frac{53}{42} = 1\frac{11}{42}  

I hope this helps!

Bogdan [553]2 years ago
5 0

Answer:

56/42, or 1 14/42

Step-by-step explanation:

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Step-by-step explanation:

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5 0
2 years ago
What is the formula for a confidence interval?
ikadub [295]

Answer:

a) The formula is given by mean \pm the margin of error. Where the margin of error is the product between the critical value from the normal standard distribution at the confidence level selected and the standard deviation for the sample mean.

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

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

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".  

If the distribution for X is normal or if the sample size is large enough we know that the distribution for the sample mean \bar X is given by:

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

Part a

The formula is given by mean \pm the margin of error. Where the margin of error is the product between the critical value from the normal standard distribution at the confidence level selected and the standard deviation for the sample mean.

Part b

The confidence interval for the mean is given by the following formula:  

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

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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7 0
2 years ago
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7 0
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triangle abc is shown in the diagram. the lengths of the sides are in terms of the variable n, where n>4. Complete the inequa
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Then, m∠B<m∠A<m∠C.
Answer: m∠B<m∠A<m∠C.

4 0
3 years ago
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