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4.6 is a better approximation to the square root of 21.

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13y ago

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Related Questions

What is the square root of 21?

The square root of 21 is 4.58257569495584.


What times itself equals 45?

Square root of 45 times square root of 45 = 45


What is the root square of 45 - the root square of 67?

The square root of 45 is approximately 6.71, and the square root of 67 is approximately 8.19. Therefore, the square root of 45 minus the square root of 67 is approximately 6.71 - 8.19, which equals about -1.48.


45 is the square root of what number?

45 is the square root of 2,025 (45 x 45 = 2025).


Square root of 21?

The square root of 21 is 4.58257569495584.


Is the square root of 21 irrational?

Yes, the square root of 21 is irrational. This is because 21 is not a perfect square, and the square root of any non-perfect square is irrational. Additionally, the square root of 21 cannot be expressed as a fraction of two integers.


What is the square root 45?

√45 = 6.708203932499369


What is the square root of 45 in simplest radical form?

The square root of 45 in simplest form is 3sqrt(5). You take the 2 roots from 45 (5 and 9) and find out the square root of 9 is 3, while the square root of 5 is still just square root 5.


Factoring out square root of 45?

3 times the square root of 5


What is four square root of five plus four square root of five in radical form?

45+45+90


What is the exact value for the expression the square root of 189 minus the square root of 21 plus the square root of 84 Simplify if possible.?

21


Multiply negative root 8 4 and 6 plus root 6 4?

Root 64 is 8, if by root you mean the square root. Then the problem become -square root 84(6+8) which is the - square root of 84(14) But square root of 84 is 2(square root of 21) so the final answer comes from -2(square root 21)x14 which is -28square root (21)