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2 years ago

What is the volume of the figure ?

Mathematics

2 answers:

frosja888 [35]2 years ago

5 0

The volume would be 44,602.2 because the formula to find the volume of a sphere is v = 4/3 pie r^3. So you multiply 22 three times and then multiply by pie. Then you would divide by 4/3 or .75.

vivado [14]2 years ago

3 0

Answer:

44,602.2 (c)

Step-by-step explanation:

The volume of a sphere is found by using the equation:

$\frac{4}{3} \pi r^{3}$

The radius is shown to be 22cm just plug it in and see that the equation produces the value: 44,602.2

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Convert 135 milligrams= how many decigrams and how many milligrams

Murrr4er [49]

135 mg*1g/1000mg*10dg/1g=1.35 dg

8 0

3 years ago

Of the population of all fruit flies we wish to give a 90% confidence interval for the fraction which possess a gene which gives

maks197457 [2]

Answer:

The margin of error for the 90% confidence interval is of 0.038.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

To this end we have obtained a random sample of 400 fruit flies. We find that 280 of the flies in the sample possess the gene.

This means that $n = 400, \pi = \frac{280}{400} = 0.7$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

Give the margin of error for the 90% confidence interval.

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$M = 1.645\sqrt{\frac{0.7*0.3}{400}}$

$M = 0.038$

The margin of error for the 90% confidence interval is of 0.038.

8 0

2 years ago

Factorise a squared - b squared

marusya05 [52]

(a-b)(a+b) because when you reverse the sum you do axa and ax-b xx

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3 years ago

What percent of all patients are blood type AB? Round your answer to the nearest tenth of a percent. Type a numerical answer in

Makovka662 [10]

Depends on the type of AB, is it AB positive or AB negative

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AB-negative: 0.6 percent

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6 0

2 years ago

Can someone please help me!

german

I think it should be 90° since x is a right angle

3 0

2 years ago