Question

help please

Answer 1

@Directrix

Answer 2

A rational number can be written as the ratio of 2 integers provided the denominator is not zero.

18/11 is the ratio of two integers so it is rational.

Answer 3

Question for you:

How does this simplify: √25 @Barrelracing

Answer 4

5

Answer 5

Correct. And, 5 = 5/1 which means that √25 is rational.

Answer 6

-√7 does not simplify and cannot be written as the ratio of two integers.

It is irrational.

Answer 7

ok makes sense

Answer 8

and pi is always irrational?

Answer 9

Your turn again:

- 8 π --> Rational or Irrational @Barrelracing

Answer 10

irrational

Answer 11

Correct.

>>and pi is always irrational?

Yes. It cannot be written as the ratio of two integers.

Answer 12

Thank you for your help. Can you check my answers until they say i have learned it?

Answer 13

What do you have marked in the Rational / Irrational chart?

Answer 14

I see the first R. What about the other four?

Answer 15

i got them all right

Answer 16

Okay.

Answer 17

correct?

Answer 18

@Directrix

Answer 19

The first entry in the chart is wrong.

How does -√81 simplify.

Answer 20

oh -9

Answer 21

Yes. And, -9 = -9/1 so -√81 is rational.

The others in the chart are correct.

Answer 22

@Directrix

Answer 23

@johnweldon1993

Answer 24

The 79.85 can be written as the ratio of two integers.

Answer 25

so then it is rational