Answer: 1
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Explanation:
To average a bunch of numbers, we add them up and divide by how many numbers there are. In this case, we'll divide by 3 since there are 3 numbers.
Add up the values: m+n+(-1) = m+n-1
Divide by 3: (m+n-1)/3
Set this equal to 0 since we're told the average is 0: (m+n-1)/3 = 0
Now let's isolate m+n. It might help to replace "m+n" with another variable, say P to get (P-1)/3 = 0.
Solve for P
(P-1)/3 = 0
P-1 = 3*0 .... multiply both sides by 3
P-1 = 0
P = 1 ... add 1 to both sides
m+n = 1 .... replace P with m+n
So that's why the answer is 1
From the given statement above, the information that can be extracted from the data is the mean which is equal to 9 % , SD equal to 4%, n is equal to 20. we can also get the variance from SD. also, we can also determine the z-score of the data which is important in the distribution.
Answer:
3
Step-by-step explanation:no
-12x+3 greater than or equal to 5
-12x greater than or equal to to 2
To turn the negative sign of -12x into positive, we multiply both sides by minus, which shifts the inequality sign.
So, 12x less than or equal to 2
x is less than or equal to 1/6
Therefore, 0, -1, -3, -4 and -6 satisfy this inequality.
