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3 years ago

What is the value of x in log2 (x)-3=1?

Mathematics

2 answers:

NemiM [27]3 years ago

6 0

Answer:

2^2

Step-by-step explanation:

Gre4nikov [31]3 years ago

4 0

X=4/log(2) Hope this helps!

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1.08 x 10^-3 in standard form?

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3 years ago

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liberstina [14]

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Step-by-step explanation:

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3 years ago

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2 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:

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

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3 years ago

The quotient of a number and 3 is 6

KengaRu [80]

Step-by-step explanation:

the quotient of a number and 3 is 6

Solution,

Let the number be x, then

$\frac{x}{3} = 6 \\ x = 6 \times 3 \\ x = 18$

5 0

2 years ago

Read 2 more answers