Answer:
18
Step-by-step explanation:
24 / 4 is 6 6 times 3 is 18
18 +6 = 24 there is the answer
Anywhere from 7 - 13 hours
It’s 3.5
use formula the formula
V=lwh
——
3
Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-

Given : Sample size : n= 35 , large sample (n>30)
Mean difference : 
Standard deviation : 
Significance level : 
Critical value : 
Now, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students will be :-

Hence, the 99.9% confidence interval for the mean difference between the marks scored last week and marks scored this week by all the students = 
Answer:
It is a solution
Step-by-step explanation:
Given

Required
Determine if
is a solution
implies that:


To check if it is a solution, we simply substitute values for x and y in the given equation;




Since both sides of the equation are equal; then, Yes, it is a solution