Yes, the number 57 is a rational number, as it can be written as a fraction.
Yes
Yes, it is.
No
8.57 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. Its equivalent, in rational form, is 857/100. You can simplify this rational fraction if you require. As a mixed number, it is 8 57/100.
57 is a rational number
Yes, the number 57 is a rational number, as it can be written as a fraction.
Yes
Yes, it is.
Neither. It is an imaginary number.
It is a rational number because it can be expressed as a fraction in the form of 19/33 = 0.'57' repeating '57'
It can be expressed as a ratio of two integers: 57/100. It is therefore rational.
5.7 is a rational number because it can be expressed as a fraction in the form of 57/10
0.57 can be written as 57/100. 57 and 100 are both integers and therefore 0.57 can be written as a ratio of 2 integers. A number that can be written as a ratio of two integers is a rational number because the word rational comes from ratio.
No, it is a rational number because it can be expressed as a fraction in the form of 57/100
Rational
It can be expressed as a ratio of two integers: 57/100.