For example:
x+2y=7
6x+7y=2
__________
x=7-2y *
6*(7-2y)+7y=2 **
__________
x=7-2y
42-12y+7y=2
__________
x=7-2y
-5y=-40
__________
x=7-2y
y=8
x=-9
Answer:
30 + 0.89m
Step-by-step explanation:
I think this is the correct answer.
Answer:
198 is the variance for the number of defective parts made each week.
Step-by-step explanation:
We are given the following in the question:
Number of parts produced each week = 20,000
Percentage of defective parts = 1%
We have to calculate the variance for the number of defective parts made each week.
We treat defective part as a success.
P(Defective part) = 1% = 0.01
![p = 0.01](https://tex.z-dn.net/?f=p%20%3D%200.01)
Then the number defective parts follows a binomial distribution
.
Formula for variance =
![\sigma^2 = np(1-p) = 20000(0.01)(1-0.01) = 198](https://tex.z-dn.net/?f=%5Csigma%5E2%20%3D%20np%281-p%29%20%3D%2020000%280.01%29%281-0.01%29%20%3D%20198)
Thus, 198 is the variance for the number of defective parts made each week.
When it comes to deductive reasoning, it is used to reach a logical solution. You start out with the general statement, or hypothesis, and examine all the possibilities so you can reach the final conclusion.
Inductive reasoning is completely opposite - you focus on specific observations, and then make broad generalizations.