Technically, any number can be divided by any and all non-zero numbers, but I'll assume you mean evenly. There is no number that is evenly divisible by nine but not three because 9 is equal to 3x3. So when you divide by 9 it is the same as dividing by 3 twice.
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yes. If you multiply three by three you get nine.
The square root of a number is the inverse of the square. For example, three squared equals nine, so the square root of nine is equal to three.
3. The square root of a number is the number that when multiplied by itself, will give you the original number. Therefore, if you multiply the square root of three by itself, you will get three. A more clear example using whole numbers: the square root of nine times the square root of nine is three times three, which gives you nine, your original number.
No. Negative three squared is POSITIVE nine. The square of ANY number is positive, because if you multiply a negative number by a negative number, the result is positive.
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