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2 years ago

Can somebody please explain this to me? it makes no sense

Mathematics

1 answer:

RSB [31]2 years ago

6 0

Answer: 33

Step-by-step explanation: So, each box is 11 pages, how do you we know that? Because it says there's 22 pages of illustrations...22 divided by 2 = 11.

Now that we know that, we know there's 33 pages of text because there's one more box and each box is 11 pages. Therefore 3 boxes = 33 pages. That means the ratio is 3:2. There's 3 boxes of texts and 2 boxes of illustrations, therefore 3:2 Hope this helps!

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What number sentence is true?

meriva

D would be true because if you think about it in percentage wise
2/8= 25%
2/3=66.66%
2/3 is automatically greater than 2/8
Hope this helps :)

5 0

3 years ago

Find the volume of the cube in inches^3 and enter your answer below. Do not include units in your answer.

AnnyKZ [126]

Answer:

16?

Step-by-step explanation:

5 0

3 years ago

the greatest common factor gcf of 2 monomiald is 3x^2y. One of the monomials is 3x^4y . Which couod be the other monomial.

fomenos

While I cannot see your answer choices, the correct answer would be one that has a coefficient that is a multiple of 3 and has an x raised to an exponent of no more than 2. It could have any other variables in it.

The reason this has to be is because of the GCF. Since 3 is part of the GCF, and the other monomial has a coefficient of 3, this means the missing monomial must be divisible by 3 as well.

Since x² is part of the GCF, the missing monomial must contain x². However, if it were to contain x³ or anything larger, the GCF would have x with a higher exponent.

4 0

3 years ago

Among 20 olden hamster litters recorded, there was a sample mean of baby hamsters, with a sample standard deviation of. Create a

Virty [35]

Answer:

$7.72-2.433\frac{2.5}{\sqrt{20}}=6.360$

$7.72+2.433\frac{2.5}{\sqrt{20}}=9.080$

So on this case the 97.5% confidence interval would be given by (6.360;9.080)

Step-by-step explanation:

For this case we assume the deviation given as s =2.5 and the mean $\bar = 7.72$

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X=7.72$ represent the sample mean

$\mu$ population mean (variable of interest)

s=2.5 represent the sample standard deviation

n=20 represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

In order to calculate the critical value $t_{\alpha/2}$ we need to find first the degrees of freedom, given by:

$df=n-1=20-1=19$

Since the Confidence is 0.975 or 97.5%, the value of $\alpha=0.025$ and $\alpha/2 =0.025$ , and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.0125,19)".And we see that $t_{\alpha/2}=2.433$

Now we have everything in order to replace into formula (1):

$7.72-2.433\frac{2.5}{\sqrt{20}}=6.360$

$7.72+2.433\frac{2.5}{\sqrt{20}}=9.080$

So on this case the 97.5% confidence interval would be given by (6.360;9.080)

3 0

3 years ago

Please please help ASAP I will mark brainly

Semmy [17]

0647 is the answer hope I helped you out in any way

6 0

2 years ago