It is indeed a rational number.
Do you know the definition of a rational number?
It is a number which can be exactly obtained by dividing one integer into another integer.
-5.8 can be obtained exactly by dividing -58 by 10. It doesn't matter that -58 is a negative number. It is still a whole number, otherwise known as an integer.
An example of an irrational number (not a rational number) is √2. This number can only be approximated (as 1.414… with as many decimal places as you desire); but it can not be exactly expressed as the ratio of two integers - as a rational number, that is.
Another irrational number is π (pronounced 'pi'). It is approximately 3.14159 - but no number of decimal places will get it exactly; nor will the ratio of any two integers.
10.01 is a rational number
Rational
Such a product is always irrational - unless the rational number happens to be zero.
The sum of a rational and irrational number must be an irrational number.
rational * irrational = irrational.
58 is rational.
Is 5.8 an irrational number
10.01 is a rational number
Rational
It is a rational number.
is 34.54 and irrational or rational. number
it is a rational number but 4.121314..... is an irrational no
Irrational.
Such a product is always irrational - unless the rational number happens to be zero.
The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.
No number is irrational and rational.
If an irrational number is added to, (or multiplied by) a rational number, the result will always be an irrational number.