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2 years ago

Question 18 Calculate the mean 12, 2, 9, 12, 10

Mathematics

2 answers:

kramer2 years ago

6 0

Answer: 9

Step-by-step explanation:

first u have to add up all the numbers "12 + 2 + 9 + 12 + 10" and that's 45 then u have to divide by how many numbers there are, so there's 5 numbers. ur dividing "45/5" which is 9 so the mean is 9

mark as brainly plss

Schach [20]2 years ago

3 0

Answer:

Mean = 9

Step-by-step explanation:

The mean is the average of a data set. Given the values, 2, 9, 10, 12, 12:

Add all the numbers in the data set, and divide its sum by the number of items in the set:

Mean = $\frac{2+9+10+12+12}{5}$ = $\frac{45}{5}$ = 9

Therefore, the mean of the given data set is 9.

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Step-by-step explanation:

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2 years ago

What is the result of subtracting the second equation from the first?

dusya [7]

Answer: $11x-8y=-9$

Step-by-step explanation:

For this exercise you need to remember:

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$(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-$

2) By definition, like terms contain the same variables with the same exponent.

Then knowing this, and given the equations:

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2 years ago

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Inessa [10]

Answer: 1:1

Step-by-step explanation:

Let r be the radius and h be the height of a cylinder.

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