math- please help
posted by B8 on .
What is the best sequence of names to identify this set of numbers?
(1 3/5,-10, 0.51(the one is repeating), TT,17)
2. (rational,irrational,rational, irrational, whole)
4. (real,integer, irrational,irrational,natural)
Off the bat I got rid of choices 2 and 3.
I picked choice#1 since a rational number is more specific and a real number can be rational or irrational.
Is this correct?
If I am not correct is there a website to hook me up with to explain the responses
0.51111... is rational, as are all numbers with repeating decimal places. Its value is 0.5 + 1/90 = 23/45
so, the most specific ordering is
Looks to me like #3 is closest, since rational and irrational are mutually exclusive, and #1,2,4 all have "irrational" in a spot where the value is rational.