The answer is $60.50, if the 10% is coming from the $55
Answer:
To write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. This is the value of m in the equation. Next, find the coordinates of the y-intercept--this should be of the form (0, b). The y- coordinate is the value of b in the equation.
Answer:
3
Step-by-step explanation:
The coefficient of the variable is the number in front of the variable
3s+15
The number in front of the variable is 3
Answer:
The answer is $4.10
Step-by-step explanation:
You have to subtract 15.90 from 20
Answer:
We have to find the 90% confidence interval for the mean
Given sample size
Sample mean
Population standard deviation
Here the confidence level is 90% then
And
The 90% confidence interval is
Here is the critical value at 0.05
From the tables
Now the 90% confidence interval is =
=
=(3840.44, 4133.56)
Hence the 90% confidence interval for the mean is (3840.44, 4133.56)