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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.
What is the square rout of 81?
Nine :) * * * * * Sort of. ± 9 are the square roots (not rout!) of 400.
What is the sq root of -9?
81 because there are no negative square roots
What is the square root of 81 over 100?
Both of those numbers are perfect squares, so square root each number separately and you will get your answer.√(81/100) = √81 / √100 = 9/10 = 0.9Don't know how far you've progressed as technically the answer is ± 0.9, but you may not have reached the stage of dealing with negative square roots of positive numbers.
When the square root of one number is subtracted from the square root of another the difference is 1 less than the square of 9?
Try the square roots of 1 and 6561, which are 1 and 81. Their difference is 80 which is one less than 81. And that is the square of 9. In fact this works whenevr the first of the two numbers is a square number. So the purpose of the question is not clear.
