Question

help! which is false?
1. every integer is a real number.
2. the number 0 is a rational number.
3. every irrational number is a real number.
4. every real number is a rational number.

Answer 1

The answer is very simple.
Irrational numbers are real numbers which are not rational.
Therefore, the answer is false.

Answer 2

ans is 4

Answer 3

1) this is true, because real numbers include the subset of integers.
2) question is if it's possible to write a fraction that equals zero
3) yes, rational numbers are subset of real number
4) no, real numbers contain stuff like \[\sqrt{2}\] which has no exact fraction