When you square a number, you multiply it by itself. So, 9 squared means 9 multiplied by 9, which equals 81. In mathematical notation, 9 squared is written as 9^2 or 9 x 9.
9^2
3 squared=9. it =9 because when a number is squared it means to multiply by itself. ex-3 squared 3x3=9. that's all it is
Yes, it is.
The next number in the series 2-4-3-9-4 is 16. 2 squared is 4, 3 squared is 9, 4 squared is 16
When you square a number, you multiply it by itself. So, 9 squared means 9 multiplied by 9, which equals 81. In mathematical notation, 9 squared is written as 9^2 or 9 x 9.
Any number that can be written as a fraction is rational -- therefore, 4/9 squared is rational (it can still be written as a fraction even if you multiply it by itself).
9 + 16 = 25
-9 or +9.
9^2
yes it isThe square root of 81 is 9.
3 squared=9. it =9 because when a number is squared it means to multiply by itself. ex-3 squared 3x3=9. that's all it is
81
Yes, it is.
Yes, 3 x 3 = 9 or3 squared is 9
The next number in the series 2-4-3-9-4 is 16. 2 squared is 4, 3 squared is 9, 4 squared is 16
No, 90 is not a square number. 81 is 9 squared and 100 is 10 squared.