Using number sets, it is found that the number -5 belongs to these following sets:
- Integer numbers.
- Rational numbers.
- Real numbers.
----------------------------------
Numbers are classified as:
- Whole numbers: Set of numbers including all positive numbers and 0, so: {0,1,2,...}. This set is also called natural.
- Integer numbers: Number without decimals, that can be positive or negative, so: {...,-2,-1,0,1,2,....}
- Rational numbers: Integer plus decimals that can be represented by fractions, that is, they either have a pattern, or have a finite number of decimal digits, for example, 0, 2, 0,45(finite number of decimal digits), 0.3333(3 repeating is the pattern), 0.32344594459(4459 repeating is the pattern).
- Irrational numbers: Decimal numbers that are not represented by patterns, that is, for example, 0.1033430290339.
- Real numbers: Rational plus irrational.
----------------------------------
- -5 is a negative number, so it is integer.
- All integers are rational and real, and thus, -5 is integer, rational and real.
A similar problem is given at https://brainly.com/question/10814303
