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2 years ago

Find a 3-by-3 magic square using the numbers 6, 8, 10, 13, 15, 17, 20, 22, and 24.

Mathematics

1 answer:

bezimeni [28]2 years ago

6 0

Answer:

Explanation:

I added a picture:

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A pharmacist put 4.536 ounces of vitamin pills into bottles. She put 0.042 ounce of vitamin pills into each bottle.

ValentinkaMS [17]

Answer:

108 bottles

Step-by-step explanation:

4.536 divided by .042 equals 108

5 0

2 years ago

Read 2 more answers

Using the simple random sample of weights of women from a data set, we obtain these sample statistics: nequals45 and x overbar

Tomtit [17]

Answer: (141.1, 156.48)

Step-by-step explanation:

Given sample statistics : $n=45$

$\overline{x}=148.79\text{ lb}$

$\sigma=31.37\text{ lb}$

a) We know that the best point estimate of the population mean is the sample mean.

Therefore, the best point estimate of the mean weight of all women = $\mu=148.79\text{ lb}$

b) The confidence interval for the population mean is given by :-

$\mu\ \pm E$ , where E is the margin of error.

Formula for Margin of error :-

$z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}$

Given : Significance level : $\alpha=1-0.90=0.1$

Critical value : $z_{\alpha/2}=z_{0.05}=\pm1.645$

Margin of error : $E=1.645\times\dfrac{31.37}{\sqrt{45}}\approx 7.69$

Now, the 90% confidence interval for the population mean will be :-

$148.79\ \pm\ 7.69 =(148.79-7.69\ ,\ 148.79+7.69)=(141.1,\ 156.48)$

Hence, the 90% confidence interval estimate of the mean weight of all women= (141.1, 156.48)

3 0

2 years ago

In November, the Sport Shop sold

Neko [114]

Answer:

March is the first month

Step-by-step explanation:

If we make a graph. We can see that the quantity of sold water skis overpasses the quantity of snow skis in the month of March.

5 0

2 years ago

A recipe called for the ratio to sugar to flour to be 5:1. If you used 35 ounce of sugar, how many ounces of flour would you nee

attashe74 [19]

Answer:

7 ounces.

Step-by-step explanation:

35 divided by 5 = 7.

8 0

2 years ago

How is adding mixed numbers with unlike denominators the same as adding fractions with unlike denominators? How is it different?

Sedaia [141]

To add a mixed number you must first convert it into a heavy headed fraction eg. 12/4
Then you must find a common denominator for all of the fractions like you normally do for regular addition of fractions
After you have added them you must convert the heavy headed fraction back into a mixed number by seeing how many times the numerator goes into the denominator

5 0

2 years ago