Yes it is a rational number
Hope this helps
Answer: 0.0775
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
Sample size : 
Since its normal distribution , then the formula to calculate the z-score is given by :-

For x= 28.2 hours

For x= 30 hours

The P- value = 

Hence, the probabiliy that the average time spent stydying for the sampe was between 28.2 and 30 hours = 0.0775
The answer is A. d-17= 22; d=39
Option b) 566.25
just subtract the amount his parents are paying from the total
and divide the remainder by the amount of months (24)
Answer:
817 Cubic Centimeters
Step-by-step explanation:
The volume of a prism is just multiplying its length, width, and height.
.