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3 years ago

Find the volume of each figure pls

Mathematics

1 answer:

kirza4 [7]3 years ago

8 0

9. rounded 1562, unfounded 1561.95
10. 489.87 unrounded, 490 rounded
11. 1953.03 unrounded, 1953 rounded

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Complete the following sentences based on the graph of the function.

stepan [7]

Answer: Sandra wants to use multiplication to solve 1/4 divided divided by 6 equals t which multiplication equation can sander use

Step-by-step explanation:

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2 years ago

A customer is comparing two different text message plans at Cellular Bargains. He wants to find out which plan allows the most t

zhuklara [117]

Answer:

i think it is f(x)= 10m+0.10s

x= number text messages send

m= months

for example: if you send 200 messages and were in the plan for 3 month the function will go like this;

f(x)= 10(3)+0.10(200)

=30+20

= $50

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4 years ago

Read 2 more answers

A fast food restaurant executive wishes to know how many fast food meals adults eat each week. They want to construct a 98% conf

adelina 88 [10]

Answer:

$n=(\frac{2.326(1.1)}{0.07})^2 =1336.006 \approx 1337$

So the answer for this case would be n=1337 rounded up to the nearest integer

Step-by-step explanation:

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".

$\bar X$ represent the sample mean for the sample

$\mu$ population mean (variable of interest)

$\sigma=1.1$ represent the population standard deviation

n represent the sample size

Solution to the problem

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =0.07 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And in excel we can use this formula to find it:"=-NORM.INV(0.01;0;1)", and we got $z_{\alpha/2}=2.326$ , replacing into formula (b) we got:

$n=(\frac{2.326(1.1)}{0.07})^2 =1336.006 \approx 1337$

So the answer for this case would be n=1337 rounded up to the nearest integer

3 0

4 years ago

Suppose the domain of g is ( negative infinity, infinity). Is the domain of f o g ( negative infinity, infinity)?

Anna007 [38]

The domain and range of the composition of f of g is not necessarily equal to the domain and range of g since the function f . This will only be true if the domain and range of the function f is (negative infinity, infinity).<span />

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4 years ago

Please help! thanks!

9966 [12]

Yes, it is.
2(3) - 3(2) = 0
2(3) + 2 = 8

6 0

3 years ago