0
-3.99 is a rational number because it can be expressed as a fraction of two integers. Specifically, it can be written as -399/100, where both -399 and 100 are integers. Rational numbers are defined as numbers that can be represented as a ratio of integers, and -3.99 fits this definition.
What else can I help you with?
Is a rational plus an irrational equals a rational?
No. A rational plus an irrational is always an irrational.
Is -131 rational or irrational?
rational
Is the sum of a rational and irrational number rational or irrational?
It is always irrational.
What is the product of rational and irrational number?
The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.
Are rational numbers is an irrational numbers?
yes * * * * * No. Rational and irrational numbers are two DISJOINT subsets of the real numbers. That is, no rational number is irrational and no irrational is rational.
Is 4.6 irrational or rational?
4.6 is rational.
Is 37.5 a rational or irrational number?
Rational
Is 34.5 rational or irrational?
is 34.54 and irrational or rational. number
Is 0.34343434 rational or irrational?
Rational
Is 2.717711777 rational or irrational?
Rational.
Is 4.46466... rational or irrational?
No
Is -4x rational or irrational?
If x is rational the it is rational. If x is irrational then it is irrational.
Is a rational plus an irrational equals a rational?
No. A rational plus an irrational is always an irrational.
What are the solutions of rational algebraic equations?
They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.They can be rational, irrational or complex numbers.
Is a rational number times a irrational number?
Can be irrational or rational.1 [rational] * sqrt(2) [irrational] = sqrt(2) [irrational]0 [rational] * sqrt(2) [irrational] = 0 [rational]
Is 1.14 is irrational or rational?
1.14 is rational.
Is 0.1234567 rational or irrational?
Rational
