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MakcuM [25]
3 years ago
14

If you tell me to host this file I will report you please help

Mathematics
1 answer:
FromTheMoon [43]3 years ago
7 0
Equation v=(pi)hr^2
R=5
H=10
10(5^2)pi=250pi
250pi is roughly 785.39 mm
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Construct the confidence interval for the population mean. c=. 95 x=6. 4 o=. 3 and n=42.
Damm [24]

The confidence interval is (63.909, 64.0907).

The confidence interval of a population mean is found using the formula:

CI = x ± z(σ/√n), where CI is the confidence interval, x is the mean, z is the z-score corresponding to the confidence level, σ is the standard deviation, and n is the population size.

In the question, we are given the confidence level, c = 95%.

Z-score corresponding to this, z = 1.96.

The mean of the population, x = 6.4.

The standard deviation of the population, σ = 0.3.

The population size, n = 42.

Thus, using the formula, the confidence interval is:

CI = 6.4 ± 1.96(0.3/√42),

or, CI = 6.4 ± 0.09073037.

Thus, the confidence interval is (64 - 0.09073037, 64 + 0.09073037), or, (63.909, 64.0907).

Learn more about the confidence interval at

brainly.com/question/17097944

#SPJ4

3 0
2 years ago
A rectangular picture 6cm by 8cm is enclosed by a frame 1/2cm wide . calculate the area of the frame.​
Stels [109]

Answer:

i have no clue wats so ever

6 0
3 years ago
Read 2 more answers
Please help, i can't figure this out and im ready to pull my hair out!!!
Nat2105 [25]

Answer:

I'm sorry I don't know the equation, but she walks 3 mph.

Step-by-step explanation:

We know that the answer is asking for speed, which needs both distance and time, so we also need both. Which is where the 9 mph is used. 9 mph means its a difference. b means biking mph, w means walking mph, sooo ----->>> b=w+9, and the difference in the 1st equation is 36, which means the first equation is 4 times larger than the b=w+9, so she walked 48 miles, as well as walked 12 miles in 4 hours. Divide then distances by 4, and you get 12 miles and 3 miles in one hour. Or 12 mph & 3 mph, which fits into 12=3+9. So she walks 3 miles per hour.

5 0
3 years ago
Martha has $180. She needs a total of $2,000 to start investing in stocks. She earns $60 per day working, of which she saves $50
DIA [1.3K]
So she earns $60 per day working, but only saves $50. To solve this equation you have to multiply $50 to each day she works. If the total has to be exactly $2,000 then you must multiply 50 x 36.4 and that equals $2,000.
Your answer should be 36.4 days.
4 0
3 years ago
HELP ME ?
julsineya [31]

1.\sqrt{11} is less than 3.5

2. \sqrt{5} is more than 2.1

3. -5.3 is more than -5 \frac{3}{5}

4. \frac{8}{10} is less than 0.8 repeating

7 0
3 years ago
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