If a is a rational number, the following statement is correct: a. a must be a positive number B. - a must be a negative number C. A must not be 0 d. A may be 0

If a is a rational number, the following statement is correct: a. a must be a positive number B. - a must be a negative number C. A must not be 0 d. A may be 0

If a is a rational number, the following statement is true: d. A may be 0

Are negative numbers rational numbers

A: as long as the numbers that can be converted into fractions are rational numbers, the numbers that cannot be converted into fractions are irrational numbers. Infinite non cyclic decimals are irrational numbers, and infinite non cyclic decimals also have negative numbers. Therefore, negative numbers are not necessarily rational numbers

Negative 3, - 4 and 1 / 2), (- 2's Square), 0, - | - 2.5 |, (- 1) to the 21st power

Because:
Negative 3 = - 3;
-(- 4 and 1 / 2) = 9 / 2;
(- 2 squared) = - 4;
0=0;
-|-2.5|=-2.5
The 21st power of (- 1) = - 1
So:
The set of positive rational numbers is:, - (- 4 and 1 / 2);
The set of nonnegative numbers are: 0, - 4 and 1 / 2