5
Rational (ℚ) which is a subset of Real (ℝ) which is a subset of Complex (ℂ).
Irrational Numbers which are a subset of Real Numbers which are a subset of Complex Numbers ...
I'm just telling you this ahead of time...but i'm not 100% sure with this answer..: fractions belong in the Rational Numbers
Yes. '7 squared' means 7 x 7, which equals 49.
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.
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.
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.