4 belongs to any set that contains it.
So {1, pi, 4, -37.5689, sqrt(2)} is a possible answer.
Natural (counting) numbers; integers; rational numbers; real numbers; complex numbers. And any other set that you choose to define, that happens to include the number 4 - for example, the set of square numbers, or even numbers, the set of the numbers {3, 4, 5, 7, 14, 48}, etc, the set of numbers containing the letter o in their English name.
Irrational numbers.
mixed numbers
composite
The fraction ( \frac{12}{4} ) simplifies to 3, which is a whole number. Therefore, it belongs to the set of integers, as well as the set of rational numbers since it can be expressed as a fraction of two integers. Additionally, it is also part of the set of real numbers.
-5
The set of numbers which 3 does not belong is the set of even numbers.
10 belongs to the set "natural numbers", but it can also belong to whole numbers, and rational numbers
Natural (counting) numbers; integers; rational numbers; real numbers; complex numbers. And any other set that you choose to define, that happens to include the number 4 - for example, the set of square numbers, or even numbers, the set of the numbers {3, 4, 5, 7, 14, 48}, etc, the set of numbers containing the letter o in their English name.
Counting numbers
Irrational numbers.
The set of even numbers
It belongs to the set of prime numbers
Rational and Real numbers
rational and prime numbers
mixed numbers
Integers