Question

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Answer 1

What defines a rational number?

Answer 2

a rational number is something that can be made into a fraction. it isnt endless unlike irrational numbers.

Answer 3

It's better to not start your question off with "fan + medal."

A rational number is any decimal, terminating decimal, fraction, or whole number. An irrational number is something that repeats, say, forever. For example, the square root of 2 is irrational because there is no rational solution, only approximations.

Therefore, ask yourself, "which one of these numbers can I take the root of evenly?"

It's not 15. I promise you that. 15 has no square root. What do you think it is?

Answer 4

Which one of these roots has a perfect square? That will be your rational number.

Answer 5

I believe that it's 16? Because it has no countless numbers. It's a whole number. @Compassionate

Answer 6

Hmm. You're on the right track. Could it be because 16 is a perfect square?

Answer 7

Also, if i may ask, why not start off my question like that? usually it attracts more people haha.

Answer 8

16 is a perfect square i believe.

Answer 9

What is a square root? It's when two numbers, which are the same, can be multiplied to make a product.

For example, the squareroot of 25 is 5 x 5
And the suareroot of 81 is 9 and 9

Answer 10

Yes, you're correct. 16 is a perfect square because it's multiples are 4 x 4

You you tried 15 or 21, these would be wrong, because their multiples are 5 x 3 and 7 x 3. These aren't square roots, and in order to express these you would have to use Imaginary Numbers (which are irrational)

Answer 11

Ah I see!! Thank you!

Answer 12

Mhm. Best of luck.