First you take -3 and add itself to get 6x = -48. Then you simply divide 6 into -48 and you get x = -8
Answer: 31
Step-by-step explanation:
Formula to find the sample size is given by :_

, where z*= critical value corresponds to confidence level.
= population standard deviation.
E= Margin of error.
As per given , we have

E=1
We know that critical value corresponding to 95% confidence level = z*=1.96
Then, the required sample size would be :



Hence, the required minimum sample size = 31
<span>The question says,'what are accepted without proof in a logical system. The answers are axiom and postulates. On the basis of logic, axioms and postulates are statements that are considered to be self evident. They are believed to be true without any demonstration. They often serve as premises for making further arguements.</span>
Answer:
n = 6
Step-by-step explanation:
To isolate n, subtract 1 from both sides:
4n + 1 = 25
4n = 24
Then divide by 4 on both sides:
4n = 24
n = 6
Hope this helped :)