## anonymous one year ago help

1. anonymous
2. Ineedhelpfast12

can you type out the question? I cant seem to access the website

3. anonymous

Let me guess, you've fallen and you can't get up?

4. anonymous

so cani get help

5. anonymous

Hold on.

6. mathstudent55

Take a calculator and do each square root. The one that does not go on forever is rational.

7. UsukiDoll

irrational numbers can't be expressed as fractions.

8. UsukiDoll

also if you have a square root left over after simplifying.. it's irrational..

9. UsukiDoll

wait a sec... @keshaun455 what's the square root of 81?

10. anonymous

Which of the following is a rational number? $\sqrt{79}, \sqrt{80}, \sqrt{81}, \sqrt{82}$ A. $\sqrt{79}$ B. $\sqrt{80}$ C. $\sqrt{81}$ D.$\sqrt{82}$

11. anonymous

81 is 9

12. UsukiDoll

yeah and since 9 can be expressed as a fraction which is 9/1 it's rational. irrational numbers is when you have square roots remaining, a pi, or e.

13. UsukiDoll

In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, p and q, with the denominator q not equal to zero. Since q may be equal to 1, every integer is a rational number. so in that case when we got the square root of 81 is 9 let p = 9 and q = 1 9/1

14. anonymous

so its c

15. UsukiDoll

yeah

16. anonymous

Good work.