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Feliz [49]
2 years ago
6

Write an explanation on how to solve x-5.5=22.9

Mathematics
1 answer:
____ [38]2 years ago
7 0

Answer:

28.4

Step-by-step explanation:

Add 5.5 to both sides.

x - 5.5+5.5 cancels out the -5.5 to get x.

x = 22.9+5.5

x=28.4

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The product of Greg's savings and 3 is 57.
Norma-Jean [14]

Answer:

Greg's savings: 19 x 1

Step-by-step explanation:

57 / 3 = 19

19 is prime, so Greg's savings has to be 19 x 1.

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2 years ago
A line is perpendicular to y=2/3x +2/3 and intersects the point (-2,4). what is the equation of this perpendicular line?
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1 year ago
What is the answer? Please answer correctly
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Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the following sum in simplest form - see attached.
melomori [17]
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5 0
3 years ago
A population has a standard deviation of 5.5. What is the standard error of the sampling distribution if the sample size is 81?
VladimirAG [237]

Answer:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

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

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

Step-by-step explanation:

For this case we know the population deviation given by:

\sigma = 5.5

And we have a sample size of n =81. We want to estimate the standard error of the sampling distribution \bar X and for this case we know that the distribution is given by:

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

And the standard error would be:

\sigma_{\bar x}= \frac{\sigma}{\sqrt{n}}

And replacing we got:

\sigma_{\bar x}=\frac{5.5}{\sqrt{81}}= 0.611

4 0
3 years ago
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