V = n X V(cube)
<u>Explanation:</u>
Given:
Side of the cube,a = 
Volume of the cube = a³
So, the volume of the cube, V is
V(cube) = 
V(cube) = 
Let the number of cubes be n
Let V be the volume of the rectangular prism
Volume of rectangular prism = number of cubes X volume of cubes
V = n X V(cube)
If the number of cubes are known then substitute the value in the above given formula.
Answer:
The degrees of freedom are given by:
And replaicing we got:
The 95% confidence interval would be between 26.9 and 31.1
Step-by-step explanation:
Information given
represent the sample mean
population mean
s represent the sample standard deviation
represent the margin of error
n represent the sample size
Solution
The confidence interval for the mean is given by the following formula:
(1)
And this formula is equivalent to:
And replaicing we got:
The 95% confidence interval would be between 26.9 and 31.1
Find a variable with equal or opposite coefficients, if equal then subtract the equations but if opposite then add, solve one variable equation left, and then substitute known variable into other equation and solve