Answer:
5 dolla footlong
Step-by-step explanation:
yes because you do the opposite so it would not be a function
Answer:
The mean of the total repair time is 150 minutes.
The variance of the total repair time is 725 minutes^2.
Step-by-step explanation:
To solve this problem, we have to use the properties of the mean and the variance. Our random variable is the sum of 3 normal variables.
In the case, for the mean, we have that the mean of the sum of 3 normal variables is equal to the sum of the mean of the 3 variables:

For the variance, we apply the property for the sum of independent variables (the correlation between the variables is 0):

The correct answer to this question is 0.064.
Here's how to simplify the expression (0.4)^3.
We have to multiply 0.4 three times.
(0.4)^3 = <span>0.4 * 0.4 * 0.4
(0.4)^3 = 0.16 * 0.4
(0.4)^3 = 0.064
The simplified answer is 0.064</span>
Answer:
D) 83
Step-by-step explanation:
x+7=90
x= 83
Hope it's helpful...