Answer:
-6r + 5
Step-by-step explanation:
-4r - 2r + 5
= (-4 -2)r + 5
= -6r + 5
Answer:
15
Step-by-step explanation:
0 + 1 = 1
1 + 2 = 3
3 + 3 = 6
6 + 4 = 10
10 + 5 = 15
Answer:
The value of mean is 
Step-by-step explanation:
The normal distribution of the soft-drink dispensing machine can be stated statistically like
~ 
The standard form representation is

Now we need to obtain
in such a way that

In standard form
Since

This means

Now looking at the z-table for probability of 0.99 we obtain 1.88
i.e
Making 



So just divide 100 by 25 which equals 4 then divide 120 by 30 which also equals to 4 and if the rest equal 4 then its proportional (1)
And then same for 2 and 3 just divided the bottom by the top and if they all get the same answer they are proportion and if one is not the same then it’s not
For the grids if the dots are line diagonally straight and it starts at the 0 then it’s proportional if not then it’s not
Hope this helps :)
With more years of education, the annual salary should also increase
when someone is more educated, they are usually able to perform more difficult jobs and in turn get paid more money