Question 48342
name the sets of numbers to which each number belongs.
use N, W, Z, Q, I, or R.
N= natural numbers: 1,2,3,....
W= I never heard of but probably is the irrational #'s
Z= integers ...-3,-2,-1,0,1,2,3,....
Q= rational number: all numbers that can be written as ratios of integers
I= imaginary numbers: bi where b is any real number and i =sqrt(-1)
R= real numbers: all rational and irrational numbers combined  
and the numbers are:
-1/3 is rational
 sqrt5 is irrational
 pi is irrational

Cheers,
Stan H.