To any set that contains it!
It belongs to {-5},
or {45, sqrt(2), -5, pi, -3/7},
or all whole numbers between -43 and 53,
or multiples of 5,
or integers,
or rational numbers,
or real numbers,
etc.
Irrational Numbers, Rational Numbers, Integers, Whole numbers, Natural numbers
It belongs to the rational numbers which is a subset of the real numbers. The reals, in turn, is a subset of complex numbers.
Yes.
The subset consisting of the one number, 7.5 : {7.5}
No. Natural numbers are a very small subset of real numbers.
-4.2 is a negative decimal number. It is also a directed number.
5
Rational (ℚ) which is a subset of Real (ℝ) which is a subset of Complex (ℂ).
It belongs to any subset which contains it. For example,the interval (3, 4){pi}{1, pi, 3/7}{27, sqrt(7), pi}
Irrational Numbers which are a subset of Real Numbers which are a subset of Complex Numbers ...
Irrational Numbers, Rational Numbers, Integers, Whole numbers, Natural numbers
It belongs to the rational numbers which is a subset of the real numbers. The reals, in turn, is a subset of complex numbers.
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.
Yes.
The subset consisting of the one number, 7.5 : {7.5}
I'm just telling you this ahead of time...but i'm not 100% sure with this answer..: fractions belong in the Rational Numbers
No. Natural numbers are a very small subset of real numbers.