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ryzh [129]
3 years ago
14

Please help me on this

Mathematics
1 answer:
Shkiper50 [21]3 years ago
5 0

Answer: 3


Step-by-step explanation:

x+4=2x+1

  -1=     -1

x+3=2x

-x     -x

3=x

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Which would not be a step in solving 18=2(4+ x)
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Step-by-step explanation:

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A national organization sets out to investigate the change in prevalence of HIV since the last census in 2010. A total of 4,706
nikitadnepr [17]

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As can be seen, there has been a rise in the proportion of the population with HIV positive, from 7.5% to 9.94%.

Step-by-step explanation:

Given that a national organization sets out to investigate the change in prevalence of HIV since the last census in 2010, ya total of 4,706 participants were interviewed and a total of 468 responses were confirmed to be HIV positive, assuming that the data from the census indicated that the prevalence of HIV in the particular population was 7.5%, to determine if the proportion of the prevalence of HIV has changed (is equal to 7.5%) the following calculation should be performed:

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Therefore, as can be seen, there has been a rise in the proportion of the population with HIV positive, from 7.5% to 9.94%.

4 0
3 years ago
What does the off center rectangle mean in the picture?
Alla [95]
2/5+4/7=2
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FALSE
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Find the z-scores that bound the middle 74% of the area under the standard normal curve.
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At this P values, the z scores are approximately:

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Step-by-step explanation:

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