1-2 is -1
I think that is the answer
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 



v = -20
you may replace v with -20 and simplify to vertiy the answer.
Answer:
2(n*3 + 7) = 80
Step-by-step explanation:
2(n*3 + 7) = 80
n*3 + 7 = 40
n*3 = 33
n = 11
Answer:
V = (2·a)·(2·b)·(2·c) = 8·(a·b·c)
8 * 56 = 448 cubic inches