Answer:
8.08 %
Step-by-step explanation:
Let us denote : 
score X follows a normal distribution with mean 
and standard deviation 
Step 2
The probability that someone scored 21.9 or less is :
Answer : 
Answer:
hundred and hundredth are way different 11.75 I think it would be tho
Step-by-step explanation:
Answer:
x = 5 and y = 3
Step-by-step explanation
y crosses out so you are left with
4x = 20 (divide by 4)
x = 5
plug x into either equation
5 + y = 8 (subtract 5)
y = 3
Add 5
y is found by adding 5 to x
Step-by-step explanation:
b. what is the perimeter of the rectangle in terms of k?
