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Irrational Numbers, Rational Numbers, Integers, Whole numbers, Natural numbers

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Q: What are the subset of the real number system?
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What subset of the real number system does -4.2 belong in?

-4.2 is a negative decimal number. It is also a directed number.


Does every point on the real number line correspond to a rational number?

No. There are several real numbers that are not rational (e.g. pi). However, every rational number is also a real number. In general, whole numbers/natural numbers is a subset of the integers (i.e. every whole number is an integer), the integers is a subset of the rationals, the rationals are a subset of the real numbers. I think the real numbers are a subset of the complex numbers, but I'm not 100% positive on that.


Is irrational number subset for real numbers?

Yes.


Which subset of the real numbers does not contain the natural numbers?

The subset consisting of the one number, 7.5 : {7.5}


Is a natural number the same as a real number?

No. Natural numbers are a very small subset of real numbers.


Which subset of real numbers does not contain the number 1?

nRURidk


Can a real number be an integer and an even number?

Yes - in fact the set of all even numbers is a subset of the set of all integers, which is, in turn, a subset of the set of all real numbers.


Which subset of the real numbers best describes 32pi?

An irrational number.


Which subset of the real number does not contain natural numbers?

Irrational numbers.


To which real number subset do the following real numbers belong 122 -64 0.3?

5


What is the subset of real number 6.45?

A number cannot have a subset, only a set can.The set containing 6.45 is {6.45} and it has two subsets: itself and the null set = {}.


Is 5192716162 a real number?

Real numbers are the subset of complex numbers with the property that their imaginary part is zero. Since the above number has no imaginary part, it is a real number.