Rational numbers are numbers that can be expressed as the quotient or fraction of two integers, where the denominator is not zero. Let's check each of the given numbers:
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–19: This can be expressed as –19/1, which is a fraction of integers.
Rational -
Negative two-fifths: This is written as –2/5, which is a fraction of integers.
Rational -
0: This can be expressed as 0/1, which is a fraction of integers.
Rational -
StartFraction 4 Over 7 EndFraction: This is written as 4/7, which is a fraction of integers.
Rational -
1.091502…: This is a repeating decimal (if we assume the sequence continues) and can be expressed as a fraction. Thus, it is rational as it has a finite or repeating decimal representation.
Rational -
2.89: This is a terminating decimal, which can be expressed as 289/100, a fraction of integers.
Rational
Therefore, all of the options listed are rational numbers.