Answer:
Greatest to least: 887.304, 887.043, 878.403
Step-by-step explanation:
Solve using your rules:
180 = 9x + 4x + 37
That means 143 = 13x
Thus x = 11
Answer:
Yes, the last 2 are indeed correct :)
Step-by-step explanation:
Good job.
Answer:
The width is 
Step-by-step explanation:
From the question we are told that
The population standard deviation is 
The sample size is 
The sample mean is 
Given that the confidence level is 99% then the level of significance is mathematically represented as

=> 
=> 
Next we obtain the critical value of
from the normal distribution table, the value is

Generally margin of error is mathematically represented as

substituting values



The width of the 99% confidence interval is mathematically evaluated as

substituting values


(3x-4)(3x-4) is the answer because when something is squared, it's just multiplying itself by itself, this also applies to expressions.