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3 or -3.

32 = 9 and (-3)2 = 9

* * * * *

+3 and -3 do not have the square root of 9 - they are the square roots of 9. The number 81 has the square root 9.

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โˆ™ 2011-10-28 19:18:51
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Q: Which number has the square root of 9?
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Related questions

What is the square root of the number 9?

The number 3 is the square root of the number 9 !


What is the difference between a square root and a square number?

3 is the square root of 9. 9 is a square number. 9 is the square root of 81. 81 is a square number.


Is 9 square root an irrational number?

The square root of 9 is rational.


What is the sqare root of 9?

The square root of a number is a number, which, when multiplied by itself, gives the original number. The square root of 9 is 3.


How do you square root in my maths?

the square root of a number is the number that is multiplied by itself to get that number, for example the square root of 9 is 3


What is the principal square root of 9?

The principal square root of 9, the positive integer which is the square root of the number, is 3.


Why is square root of 9 a rational number and square root of 3 is an irrational number?

Because 9 is a perfect square - which means that its square root is an integer. 3 is not a perfect square.


Is the square root of 9 a whole number?

Yes. The square root of 9 is 3.


How do you reverse a square root?

The opposite of a square root is the square of a number. For example, the principal square root of 81 is 9, while the square of 9 is 81.


What would happen if you squared a square root number?

The square of a square root takes you back to the number itself. For example, the square root of 9 is 3. 3 squared is 9. Therefore, sqrt(9)2 = 9


Is the square root of 9 a rational or irrational number?

The square root of 9 is 3 which is rational.


Is the square root of 9 rational or irational?

The square root of 9 is 3 which is a rational number


Is the square root of -9 a natural whole integer rational or irrational number?

It is none of those because the square root of -9 is an imaginary number but the square root of 9 is 3 which is a rational integer or whole number


How do you do the square root?

To find the square root of a number you must find the number that can multiplied by itself to equal that number Ex: the square root of 9 is 3 because 3*3=9


Is the square root of -9 a rational number?

No - a square root of a negative number is an imaginary number. for example, sqrt(-9) is equal to 3i.


What does square root of a number mean?

The square root of a number is a number which, when multiplied by itself, gives the original number. So, 9 has a square root which is 3 because 3*3 = 9


What is the square root of this number 81?

The square root of 81 is 9. The square roots of 81 are 9 and -9.


Why do you say square number and what does square root mean?

square root is a number that multiplies into its self to get a number. For example:3x3=9


Which of these numbers is classified as a rational number square root 17 square root 23 square root 9 square root 2?

square root of 9 = 3 but 2, 17 and 23 are irrational numbers


Is the square root of 81a rational number?

Yes. The square root of 81 is 9, which is a rational number.


How do find the sqaure root of a number?

To find the square root of a number you multiply that number by it self twice.(example) the square root of 9 ? the square root of nine is 81 as 9X9=81. square root of 4 ? th square root of is 16 as 4X4=16.


Is the square root of 81 a counting number?

Yes. Square root of 81= 9


Is the square root of nine a real number?

Yes, the square root of 9 is 3.


How do you get the square root of a number?

What you have to do is multiply that number by the same number for example 3x3=9 so 9 is a square number.


Is 3 a square root number?

All integers are square roots. 3 is the square root of 9.