There may be some hidden agenda in this question. Why would 9 not be a real number?
It is not a real number.
Any number, real or imaginary, can be the sum of another number plus 9.
The roman numeral for number 9 is: IX
It's 9.
9
Digit is not a real number unless it is 0-9
It is not a real number.
The conjugate of a real number is simply the number itself, as conjugates typically refer to complex numbers. Since -9 is a real number and does not have an imaginary part, its conjugate is also -9. In summary, the conjugate of -9 is -9.
0 to 9 are the real numbers.
The product of nine negative real numbers is a negative real number.
Yes. It's 9. The square root of every positive real number is a real number.
Any number, real or imaginary, can be the sum of another number plus 9.
Christiano Ronaldo wears jersey number 9.
It's number 9.
No - 9/0 is an impermissible number. The denominator can't be a zero.
No, it is a real, rational number. It can also be called an integer, whole number, and natural number.
The roman numeral for number 9 is: IX