Answer: 2.28 %
Step-by-step explanation:
Given : Mean : 
Standard deviation :
The formula to calculate the z-score :-

For x = 72

The p-value = 

In percent, 
Hence, the percentage of pediatricians work more than 72 h per week = 2.28 %
Answer:
X is less than or equal to 1.66666666667
Step-by-step explanation:
3x-7(less than or equal to)-2
-7+7= 0
-2+7=5
3x divided by 3 cancles out
5 divided by 3 = 1.66666666667
x is less than or equal to 1.66666666667
Answer:
C
Step-by-step explanation:
Answer:

Step-by-step explanation:
-Given the dimensions of the box is 8.7 in, 14 in and 10 in.
Let length=14 in, width=10 in and height =8.7 in
#The surface area of a rectangular prism is calculated as:

Hence, the wrapping paper needed has an area of 