Yes
-18 is the ratio of -18 and 1 ... nice and rational. Also the ratio of 18 and -1, of 36 and -2, of 180 and -10, etc.
It is neither because the square root of -18 is an imaginary number but the square root of 18 is irrational
Negative numbers can be rational but not all negative have to be rational. It all depends if they can be put into a fraction.
No, -5 is a negative, rational number.
The negative square of 36 is -(36*36) = -1296. It is rational.
-18 is the ratio of -18 and 1 ... nice and rational. Also the ratio of 18 and -1, of 36 and -2, of 180 and -10, etc.
Yes - any whole number - even a negative number - is a rational number.
No. It is -3 and can be written as a fraction, so it is rational.
It is neither because the square root of -18 is an imaginary number but the square root of 18 is irrational
Rational numbers can be negative or positive.
rational
-18 is a rational number
It is rational. It is rational. It is rational. It is rational.
No, -5 is a negative, rational number.
Negative numbers can be rational but not all negative have to be rational. It all depends if they can be put into a fraction.
Any rational positive number is still rational when you make the same number negative.
It is the smallest non-negative rational number. Negative numbers are rational and are smaller.