How do I solve this equation?

Mathematics

2 answers:

AnnyKZ [126]3 years ago

4 0

Okay so basically all you do is first subtract 2 from 2 and from 17. positive minus a negative 2 cancels out. Once this is done, you simplify your answer to 5x<15. Then, you divide both sides by 5 to get the variable by itself. 5x divided by 5 cancels out to 1 and 15 divided by 5 equals 3. This means that you answer will be x<3 and being that you did not multiply or divide by any negatives, the inequality sign stays the same and doesn’t flip... I hope this helps

aalyn [17]3 years ago

3 0

Answer:

x< 3

Step-by-step explanation:

5x+2<17

-2. -2

5x<15

Divide both sides by 5

x< 3

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wolverine [178]

Answer:

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b. For n=50, the mean and standard deviation of the prices of the mobile homes all possible sample mean prices are $63,800 and $1,117, respectively.

Step-by-step explanation:

In this case, for each sample size, we have a sampling distribution (a distribution for the population of sample means), with the following parameters:

$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{n}$

For n=25 we have:

$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{25}=7,900/5=1,580$

The spread of the sampling distribution is always smaller than the population spread of the individuals. The spread is smaller as the sample size increase.

This has the implication that is expected to have more precision in the estimation of the population mean when we use bigger samples than smaller ones.

If n=50, we have:

$\mu_s=\mu=63,800\\\\\sigma_s=\sigma/\sqrt{n}=7,900/\sqrt{50}=7,900/7.07=1,117$

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Reptile [31]

This is simply what I wrote for my assignment, sorry I am a bit late.

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