Yes all number that are not a - or a fraction are rational.
No, it is a rational number, as it can be written as a fraction.
It is a rational number.
3 and 4 are two examples.
The answer depends on the ellipsis. If the .. is meant to indicate that the string of 5s continues without end ten it is a rational number.
Yes. -10 = -10/1 which is of the form of one whole number over another whole number. Rational numbers have the form of one whole number over another whole number. Thus -10 is rational.
No - the square root of 40 is not a rational number. Rounded to ten decimal places, it is equal to 6.3245553203.
You would need to divide by -1/2.
Another rational number.
-17/10 = -1.7
The number 5 is indeed a rational number. A rational number is one that is able to be written down as a simplified fraction. The number 5 would be written as 5/1.
They are rational, if the numerator and denominator are integers. For example, -2 / 3 would be a rational number.They are rational, if the numerator and denominator are integers. For example, -2 / 3 would be a rational number.They are rational, if the numerator and denominator are integers. For example, -2 / 3 would be a rational number.They are rational, if the numerator and denominator are integers. For example, -2 / 3 would be a rational number.
No, and I can prove it: -- The product of two rational numbers is always a rational number. -- If the two numbers happen to be the same number, then it's the square root of their product. -- Remember ... the product of two rational numbers is always a rational number. -- So the square of a rational number is always a rational number. -- So the square root of an irrational number can't be a rational number (because its square would be rational etc.).