no
Yes.
-42 is rational. All integers are rational numbers as they can be expressed as the number over 1 which, being one integer over another integer, is the form of a rational number.
Yes the square root of 1764 is 42
The square root of any number between 42 = 16 and 52 = 25, eg √17, √20
The square root of 42 is an irrational number
42 is 16, less than 20 52 is 25, more than 20. so, 20 is not a perfect square, and does not have an integral square root. But, the square root of any integer is either an integer itself, or irrational. So, square root 20 is irrational
no
Yes.
There is no precise answer because it is an irrational number
No because 11/42 is a rational number
-42 is rational. All integers are rational numbers as they can be expressed as the number over 1 which, being one integer over another integer, is the form of a rational number.
Yes the square root of 1764 is 42
The square root of 42 is approximately 6.4807. This is because 6.4807*6.4807 = 42 (approx).
The square root of any number between 42 = 16 and 52 = 25, eg √17, √20
44
The square root of 36 is 6 and the square root of 49 is 7 These are used as 42 is between 36 and 49.