A normal distribution has a mean of 50 and a standard deviation of 10. What is the probability of selecting a number between 20 and 60?

A normal distribution has a mean of 50 and a standard deviation of 10. What is

the probability of selecting a number between 20 and 60?

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

2 2/3 hours duhh silly

step-by-step explanation: