Your subtracting 3x from 5x: 5x-3x
This is so you only have a variable on one side
A, B, C, D I just took this on edgenuity
Answer:
The standard deviation is 2.6832815729997
Step-by-step explanation:
SD^2=(12-12)^2+...+(14-12)^2/10
SD^2=72/10
SD^2=7.2
SD=squeare root of 7.2
SD=2.6832815729997
Answer:
after school and college football season