permutation without replacement
Yes.
an irrational number
The only real number that is non-terminating and non-repeating is Pi (pie)
Pi is an irrational number, with an infinite number of nonrepeating digits. So pi is only approximately equal to 3.1415926535897932384626433832795028841971693933751058209749445.
Compute means to calculate. What do you want to "compute", if you already know it is 2? If you want to show the value:System.out.println("Your number is " + 2);Compute means to calculate. What do you want to "compute", if you already know it is 2? If you want to show the value:System.out.println("Your number is " + 2);Compute means to calculate. What do you want to "compute", if you already know it is 2? If you want to show the value:System.out.println("Your number is " + 2);Compute means to calculate. What do you want to "compute", if you already know it is 2? If you want to show the value:System.out.println("Your number is " + 2);
That specific number is rational, yes. However, there's a pattern there (2,1 zero, 2, 2 zeroes, 2, three zeroes, 2, four zeroes), and if you're asking if the infinite nonrepeating decimal following that pattern is rational... no it is not, that kind of being what "infinite nonrepeating decimal" means.
If the serial number is 459317, it was made in 1893. Letters don't compute in a Winchester serial number for a model 1873.
The atomic number of any element is the number of protons in the nucleus of that element, which you can easily find in the periodic table of elements. You don't have to compute anything.
Yes, However, it is not defined that way. It is defined as a number that cannot be expressed precisely as a ratio of two real numbers (a fraction). But that is equivalent to a non-repeating decimal.
Yes.
Compatible number
A nonterminating number does not end. An example is the fraction 1/3. When written as a decimal, it is a nonterminating number. Also pi is a nonterminating number. Some nonterminating numbers are repeating, some are nonrepeating. But they just don't end.