-(1/9) and (1/9)
9/13
8/3
92 = 81 102 = 100 so the positive square root is between 9 & 10
The square root of 49 is 77, because, 7 x 7 = 49.
It is -10/9
Square root of (7 over 9) = 0.8819 (Square root of 7) over 9 = 0.2940 Highlights the importance of brackets, doesn't it?
When 100 is squared, the root is 10. That means you can multiply 10 by 10 and the answer is 100. The square root of 81 is 9 and 8 is the square root of 64.
9 x 9 = 81 and 10 x 10 = 100. So any number 82-99 would have a square root between 9 and 10.
9 and 11
The square root of the fraction 4/9 is either 2/3 or -2/3
-(1/9) and (1/9)
9/8
3/7
9/13
8/3
92 = 81 102 = 100 so the positive square root is between 9 & 10