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lidiya [134]
2 years ago
9

Write “ The difference between n and 16 is 5” is in algebraic equation. Then find the solution.

Mathematics
1 answer:
IceJOKER [234]2 years ago
5 0
The different between n and 15 is 5 in an algebraic expression would be n-16=5
the solution would be n=21
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8. Given the standard deviation of 16 for a population and a 95% confidence level, find the margin
Kazeer [188]

Answer:

4.0486

Step-by-step explanation:

The margin of error is calculated using  E=z_{\frac{\alpha}{2} }*\frac{\sigma}{\sqrt{n} }

Where n=60 is the sample size and \sigma=16 is the population standard deviation.

The critical value corresponding to 95% confidence interval is z_{\frac{\alpha}{2}}=1.96

We substitute the values to obtain;

E=1.96*\frac{16}{\sqrt{60} }

E=1.96*2.06559=4.0486

3 0
2 years ago
Simplify this please (multi choice)
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5 0
3 years ago
The sum of two numbers is "-1" One number is 12 more than the other one. Find the numbers.
ruslelena [56]

Answer:

x = 5.5

y = - 6.5

Step-by-step explanation:

Let one of the numbers = x

Let the other number = y

x + y = - 1

x = y + 12    Put the second equation into the first one

y + 12 + y = - 1       Subtract 12 from both sides

y + y = - 1 - 12        Combine both left and right sides

2y = - 13                Divide by 2

2y/2 = - 13/1

y = - 6.5

x + y = - 1

x - 6.5 = - 1            Add 6.5 to both sides

x = 5.5

7 0
2 years ago
Plz do this ill mark brainly and its worth 15 points plz​
Vlada [557]

Answer:

Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
Is the sum of two rational numbers rational
Advocard [28]

Answer:

no they are irrational

6 0
2 years ago
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