Study guides

☆☆

Q: Is the square root of 84 rational or irrational?

Write your answer...

Submit

Still have questions?

Continue Learning about Algebra

It is: 2 times the square root of 21 and it's an irrational number

First note that 84=4x21 and 4 is a perfect square. So square root of (84)=square root (4x21)=Square root (4) Square root (21)= 2 multiplied by the square root of 21. You can also write this using rational exponents, but this is not in radical form. It is an equivalent expression, however. 2 x (21)1/2

The square root of 7056 is 84.

84

- 9.165151 or + 9.165151

Related questions

√84 is irrational.

The square roots of 84 are irrational.

No. The square root of 84 is an irrational number

No because it is 2 times the square root of 21 which is an irrational numberThe square root of 84 is not a rational number

If you mean 84 squared then it is 84*84 = 7056 If you mean the square root of 84 then it is 2 times the square root of 21 which is an irrational number

It is: 2 times the square root of 21 and it's an irrational number

The square root of 84 is irrational and is approx 9.1652.

First note that 84=4x21 and 4 is a perfect square. So square root of (84)=square root (4x21)=Square root (4) Square root (21)= 2 multiplied by the square root of 21. You can also write this using rational exponents, but this is not in radical form. It is an equivalent expression, however. 2 x (21)1/2

The square root of 7056 is 84.

No. The sq root of 84 is 9.16555515139. 81 is a perfect square, where the sq root is 9.

84

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)

People also asked