We want to find the mean of two elements in a set, given that we know the other elements of the set and the mean of the whole set.
The answer is: -490
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For a set with N elements {x₁, x₂, ..., xₙ} the mean is given by:
Here we know that:
- The mean of the set is 0.
- The set has 1000 elements.
- 998 of these elements are ones, the other two are A and B.
We want to find the mean of the values of A and B.
First, we can start by writing the equation for the mean:
We can rewrite this as:
And we have 998 ones, then:
Now we have B isolated.
With this, the mean of A and B can be written as:
So we can conclude that the mean of the other two numbers is -490.
If you want to learn more, you can read:
brainly.com/question/22871228
The answer would be
130 degrees
Which of the following is an example of an open equation?
An open equation is an equation with at least one variable.
Therefore, 5x + 7 = 12 is an open equation.
Which of the following equations has 3 as a solution
z ‒ 15 = ‒12
z = -12 + 15 = 3
Is (1, 5) a solution to the equation y = x – 2?
5 ≠ 1 - 2
-5 ≠ -1
no
Is (–2, –6) a solution to the equation y = 3x?
-6 = 3(-2)
yes
Which of (3, 5), (4, 6), (5, 7), and (6, 8) are solutions to y = x + 2
5 = 3 + 2
6 = 4 + 2
7 = 5 + 2
8 = 6 + 2
all
Which equation would be used to generate the data in the following table?
x y
1 8
2 16
3 24
4 32
y = 8x
On a treadmill, you burn 11 calories in 1 minute, 22 calories in 2
minutes, 33 calories in 3 minutes, and so on. How many calories do you
burn in 10 minutes?
11 x 10 = 110 calories
Alright! What name is your book and what page?