no. 80 is a rational number
No because -80 is a rational number
No it is rational because it can be expressed as a fraction in the form of 80/1
Yes
It is a rational number because it can be expressed as an improper fraction in the form of -80/1
-8.0 is a rational number. Irrational numbers are things such as numbers that can't be expressed as a fraction in the a/b form. Such numbers that are irrational include pi, square roots of negative numbers, etc.
Irrational. Irrational. Irrational. Irrational.
It is irrational.
There are approximately 0.45359237 kilograms in a pound. To convert 80 pounds to kilograms, we would have to multiply this factor by 80. So 80 lbs is approximately equal to 36.2873896 kg. (Note that this is approximate because the number is an irrational function; that is, it does not divide out evenly, and the decimals continue ad nauseam.)
Rational
Such a sum is always irrational.
If it says "negative irrational", then obviously it is irrational.
No