Yes.
No. The sum of an irrational number and any other [real] number is irrational.
No because 5.4 is a rational number that can be expressed as a fraction in the form of 27/5
A negative irrational number can be thought of as an irrational number multiplied by -1, or an irrational number with a minus sign in front of it.
If an irrational number is added to, (or multiplied by) a rational number, the result will always be an irrational number.
The square root of 27 is an irrational number
Yes.
Yes.
No. 27 to the third power is a regular whole number.
No, it is rational.
sqrt(27)
It is a whole number and it can be written as a fraction, so it is rational.
5.4 = 5 2/5 = 27/5 so it is a rational number.
No because it is a rational number that can be expressed as a fraction in the form of 27/5
Yes, 27 is a real number. Real numbers include all rational and irrational numbers, and 27 is a rational number because it can be expressed as a fraction, 27/1.
No because it can be expressed as a fraction in the form of 27/1
No because 3 cubed is 27 which is a rational number