I'm pretty sure it would be a because it's a negative number but can someone confirm for a medal?
Which of the following is irrational?
-9 over 5
Square root of 5
7 over 3
Square root of 9

Question

I'm pretty sure it would be a because it's a negative number but can someone confirm for a medal?
Which of the following is irrational?
-9 over 5
Square root of 5
7 over 3
Square root of 9

anonymous · Answer

Thank you. But since all the other ones are positive wouldn't the irrational number be the fraction negative 9 over 5

jim_thompson5910 · Answer

rational means you can write it as a fraction of two whole numbers

rational numbers can be negative

eg: -2/3

anonymous · Answer

Ohhhh so the square root of 9 would be wrong

jim_thompson5910 · Answer

that is equivalent to 3 which is the same as 3/1

sqrt(9) is rational since 3 is rational

anonymous · Answer

But the square root of 5 don't have any whole numbers it would be like 2.5 so wouldn't that one be irrational?

jim_thompson5910 · Answer

sqrt(5) is irrational. there is no way to write it as a fraction of whole numbers

jim_thompson5910 · Answer

we can get approximations, but never the exact thing

anonymous · Answer

Than you so much(:

jim_thompson5910 · Answer

you're welcome