Answer:
negative 2
Step-by-step explanation:
2 times 2 times 3 equals 12. then 10-12 equals -2
Ama downloaded 7 songs per minute.
112.99
You would take 159.99 multiply it by .30 and then take that number and subtract it from 159.99
The population standard deviation of the data set is 1.414.
<h3>What is standard deviation?</h3>
Standard deviation is used to determine how the values in a group differs from the mean of the values in the group. It is a measure of variation.
<h3>How is standard deviation calculated?</h3>
- Determine the mean of the observation
- Determine the difference between each value and the mean and then square the result
- Determine the mean of the sum of the squared differences and then find the square root of the mean:
Mean = (8 + 9 + 10 + 11 + 12) / 5 = 10
Sum of squared differences: (8 - 10)² + (9 - 10)² + (10 - 10)² + (11 - 10)² + (12 - 10)² = 10
√10/5 = 1.414
To learn more about standard deviation, please check: brainly.com/question/26201837
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SA = surface area of the sphere
SA = 4*pi*r^2
200 = 4*pi*r^2
200 = 4*3.14*r^2
200 = 12.56*r^2
12.56*r^2 = 200
r^2 = 200/12.56
r^2 = 15.9235668789809
r = sqrt(15.9235668789809)
r = 3.99043442233811
The radius is r = 3.99043442233811
so the diameter is
d = 2*r
d = 2*3.99043442233811
d = 7.98086884467621
Answer: 7.98086884467621
Round this however you need to