Question

Out of these numbers list the ones that are Natural Numbers: -8, -2/5, 0, 0.4, -8, 0, @RT{5},

Answer 1

\[-8, \ - \frac { 2 }{ 5 }, 0, 0.4, \sqrt{5}, \sqrt{49}\]

Answer 2

Look at the equation, not the question I typed out

Answer 3

@ganeshie8 @geerky42

Answer 4

Natural numbers are the counting numbers. Pretend you are counting on your fingers. Which of these numbers are counting numbers?

Answer 5

So would this be my answer: \[-8, 0, 0.4, \sqrt{5}, \sqrt{49}\] in that correct order?

Answer 6

@ospreytriple

Answer 7

You can't count -8 on your fingers, or 0.4, etc. Imagine you've got a basket of apples and you're counting them. Those numbers are the natural numbers. {1, 2, 3, ...}

Answer 8

So my natural numbers would be this answer then perhaps right? \[0, \sqrt{5}, \sqrt{49}\]

Answer 9

Unfortunately, there is no agreement as to whether zero is a natural number, but my experience has been that it is normally included as well.

Answer 10

Can you hold up \(\sqrt{5}\) fingers?

Answer 11

Oh so those are imaginary numbers right?

Answer 12

No. Imaginary numbers are something else. \(\sqrt{5}\) is what's called an irrational number. So what's your final answer?

Answer 13

So my only real natural number could be \[0\]. Because it cant be a fracton either correct?

Answer 14

Well. Do you what \(\sqrt{49}\) equals?

Answer 15

7?

Answer 16

Right. So is that a natural number?

Answer 17

Yes it is. So my natural numbers are: \[0, \sqrt{49}\]?

Answer 18

Correct. Well done. The set of natural numbers doesn't have any fractions, or decimals, or negative number. Just counting numbers.

Answer 19

Thank you!

Answer 20

You're welcome