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Anon25 [30]
2 years ago
12

Describe how you regroup when you find the sum of 64 + 43

Mathematics
1 answer:
vaieri [72.5K]2 years ago
4 0
When you regroup you are basically breaking down the problem.
You would do 60 + 40=?
Then you would do 4 + 3= ?
Your answer would come out to 107
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T(m)=0.04m+1.26?? I don't understand how to solve it...
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You gotta move that b to the side ya digg
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Jeremy drew a polygon with four right angles and four sides with the same length. Name all the polygons that he could have drawn
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5 0
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Sociologists want to test whether the number of homeless people in a particular urban area is increasing. In 2010, the average n
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Answer:

The test statistic value is 15.3.

Step-by-step explanation:

The hypothesis for this test is:

<em>H</em>₀: The average number of homeless people is not increasing, i.e. <em>μ</em> = 42.3.

<em>H</em>ₐ: The average number of homeless people is increasing, i.e. <em>μ</em> > 42.3.

Given:

\bar x=45.3\\\sigma=6.2\\n=1000

As the population standard deviation is provided use a single mean <em>z</em>-test for the hypothesis testing.

The test statistic is:

z=\frac{\bar x-\mu}{\sigma/\sqrt{n}}=\frac{45.3-42.3}{6.2/\sqrt{1000}}=15.3

Thus, the test statistic value is 15.3.

7 0
2 years ago
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