Answer:
the fist one is equal to 20
Answer:
The variance is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 21
The sum of squares is 
Generally the variance is mathematically represented as
substituting values
The answer is 13 1/3 or 13.333333333
8 x 5/3 = 13 1/3
2.30 + 0.40(x - 1) < = 5.10
2.30 + 0.40x - 0.40 < = 5.10
1.90 + 0.40x < = 5.10
0.40x < = 5.10 - 1.90
0.40x < = 3.20
x < = 3.20 / 0.40
x < = 8 <=== 8 pages, at the most, can be faxed
In the problem given:
W + 15x - 9y + 2z
The term are single mathematical expressions that separate values.
In the expression, there is a + and -; these concludes 2 terms.
There are 3 coefficients next to each variable.
The coefficients are 15x, -9y, and 2z.
That means there are 3 coefficients.
Cheers
- ROR
