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fgiga [73]
3 years ago
5

A students work to simplify a radical is shown below. Select the statemmebt which best applies to rhe sample mathematical work

Mathematics
1 answer:
Citrus2011 [14]3 years ago
4 0

Answer:

D. The work shown above is correct, and y^5.\sqrt[4]{y^3} may not be simplified further.

Step-by-step explanation:

\sqrt[4]{y^{23} } = \sqrt[4]{y^4 . y^4 . y^4.y^4.y^3}

\sqrt[4]{y^4. y^4.y^4. y^4.y^3} = y^5 . \sqrt[4]{y^3}

When we simplify, we get

\sqrt[4]{y^{23} } = y^5.\sqrt[4]{y^3}

The answer: D. The work shown above is correct, and y^5. \sqrt[4]{y^3} may not be simplified further.

Thank you.

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Answer:

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Step-by-step explanation:

7(2x-5)-11=3(5x-2)-2x      Distribute

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3 years ago
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Answer:

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3 years ago
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madreJ [45]

Answer:

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b. 2 minutes

Step-by-step explanation:

Previous concepts

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Solution to the problem

For this case we have the following info related to the time to prepare a return

\mu =90 , \sigma =14

And we select a sample size =49>30 and we are interested in determine the standard deviation for the sample mean. From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

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

And the standard deviation would be:

\sigma_{\bar X} =\frac{14}{\sqrt{49}}= 2

And the best answer would be

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olganol [36]
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3 years ago
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