Can someone please helpA cone-shaped container is filled with liquid. The container has a radius of 60 cm and an height of 210 cm. The liquid is drained from the container at a rate of 1099 cm3 per hour. How many hours will it take to drain all of the liquid? Use 3.14 to approximate pi.

Answers

Answer 1

Answer: find volume
v=(1/3)hpir^2
r=60
h=210
pi=3.14 for this questio
v=(1/3)(210)(3.14)(60^2)
v=(1/3)(210)(3.14)(3600)
v=(70)(3.14)(3600)
v=(70)(3.14)(3600)
V=791,280 cm3

rate of 1099 er hour

drained out is zero
amount drained total=volume of cone=1099 times number of hours
lets say number of hours=x
1099x

791,280=1099x
divide both sides by 1099
720=x

answe ris 720 hours

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Henry recorded the number of miles he biked each day for a week. His miles were 25, 40, 35, 25, 40, 60, and 75. Enter the data into the statistics calculator.what is the standard deviation of the miles Henry biked to the nearest tenth?

Answers

The standard deviation of the given data is 17.1

What is standard deviation?

Standard deviation meaning in statistics is a measure of how much the data points vary from the mean or average. It is calculated as the square root of the variance, which is the average of the squared deviations of each data point from the mean.

Given is a data set, we need to find the standard deviation of the data set,

S = 25, 40, 35, 25, 40, 60, 75

Finding the mean =

(25+40+35+25+40+60+75)/7 = 42.86

Finding the variance =

(25-42.86)² = 319

(40-42.86)² = 8.2

(35-42.86)² = 61.8

(25-42.86)² = 319

(40-42.86)² = 8.2

(60-42.86)² = 293.8

(75-42.86)² = 1033

(319+8.2+61.8+319+8.2+293.8+1033)/7=291.9

Therefore, the standard deviation =

√291.9 = 17.1

Hence, the standard deviation of the given data is 17.1

Learn more about standard deviation click;

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Answer:

17.1

Step-by-step explanation:

1. Find the Mean

(25+40+35+25+40+60+75)/7 = 42.9

2.For each number, subtract the Mean and square the result.

(25-42.86)^2=319

(40-42.86)^2=8.2

(35-42.86)^2=61.8

(25-42.86)^2=319

(40-42.86)^2=8.2

(60-42.86)^2=293.8

(75-42.86)^2=1033

3. Find the Mean of those squared differences.

(319+8.2+61.8+319+8.2+293.8+1033)/7=291.9

4.Take the square root of that and this is what you want.

square root of 291.9 = 17.1

A veterinarian has found that 4 cat years equal 32 human years, and 8 cat years equal 48 human years. Are cat years proportional to human years? Explain your reasoning.

Answers

No, because for them to be proportional they have to be equal, which they aren't say they were each cat year is 8 human years so the first is right but for the second one to be right it has to be 64. Hope this helps you out.

How do you solve for mass if KE=0.5mv2

Answers

Answer:

$m=(2KE)/(y^(2) )$

How many days old will be the baby when it has lived for one million seconds ( without decimals)

Answers

How many days old will be the baby when it has lived for one million seconds? Approximately 11 days. Good luck!

The answer is 11 days.

Kiera's dance class starts at 4:30 p.m. and ends at 6:15 p.m. How long is her dance class?

Answers

Her dance class is 1 hour and 45 minutes.

This is because there is 1 hour from 4:30 to 5:30. Then, there is 45 minutes from 5:30 to 6:15

Good luck!

If Kiera's dance class starts at 4:30 p.m. and ends at 6:15 p.m. then how long is it? Lets find out. The way I solved it would be to count by hours. 4:30 to 5:30 is one hour. 5:30 to 6:30 is 2 hours. But 6:30 is too much time. So now you take away the required amount to make it 6:15. You have to take away 15 minutes. So 2 hours minus 15 equals 1 hour and 45 minutes.
Kiera's dance class was 1 hour and 45 minutes long.

If I pay 120 a week for child care how much do I pay a year