Rational numbers are those that can be expressed as a ratio of two integers. So 2, which can be expressed in such a way, for example, (-2) / 1 or 2 / (-1) is a rational number.
No, it is an imaginary number which is a complex number.
No, they can be rational or irrational. The sign of a number has nothing to do with it.
It is a rational number because it can be expressed as an improper fraction in the form of -80/1
No.
no
' -3pi ' is IRRATIONAL , because 'pi' is Irrational. Remember ; Rational (-3) X (Multiplied) Irrational(pi) = irrational.. Irrational numbers are those , in casual terms, decimals that recur to infinity AND there is no regular order in the decimal digits. pi = 3.141592..... So -3pi = -9.42477796..... More formally an irrational numbers is a decimal that CANNOT be converted to a RATIO/FRACTION/Quotient.
If you have any positive irrational number, then its negative is also irrational.
A negative irrational number can be thought of as an irrational number multiplied by -1, or an irrational number with a minus sign in front of it.
If it says "negative irrational", then obviously it is irrational.
The negative of a rational number is also rational.
Not necessarily. Irrational numbers can be negative or positive.
No, it is an imaginary number which is a complex number.
No, they can be rational or irrational. The sign of a number has nothing to do with it.
no
-Pi is irrational, because it does not terminate or repeat. Whenever you multiply an irrational number by a rational number (-1), the result is an irrational number.
It is a rational number because it can be expressed as an improper fraction in the form of -80/1
No.