1/4 squared would be 1/4 times 1/4 which would eqaul 0.063
Answer:
a=formula : Sum of all side
= 3+5+3
=11 ans
Step-by-step explanation:
formula is sum of all side
so add 3+5+3 ans =11
this is simple method
Since two people take both courses, we can subtract two from 7, 8, and 21, giving us 5, 6, and 19.
Add 5 and 6 together to get 11. Since eleven students are in those two groups, we can answer this. The answer will be 11/19.
If you combine like terms the answer is 4x
