Question

Which of the following numbers is irrational?



negative 15 over 4, negative 7 over 9, square root of 4, π






negative 15 over 4
negative 7 over 9
square root of 4
π

Answer 1

i say B but not sure

Answer 2

i think it would be a but i am not 100% sure

Answer 3

idk

Answer 4

Rational - Quotient of 2 integers.

The first two already meet that definition.
The third requires resolution of the square root, then it is obvious.
The last? What say you?

Answer 5

Go with B!

Answer 6

Ummm whats wrong with ppl -.-
Come on WHats pi all abt?????

Answer 7

Fractions are rational kids ....

Answer 8

Yes I love the picture....y'all look at @SolomonZelman picture the irrational #'s or on the right side

Answer 9

fractions are not always rational
\(\Large \pi=3.14.......=\dfrac{22}{7}\)

is irrational

Answer 10

dang it .... this is embarrasing ;(
TIme for me to go back to school

Answer 11

hay wait ill help u

Answer 12

o nvm justlook st question cant srry i onloy 7th graader

Answer 13

any fraction a/b is rational if and only if a,b are integers. If a or b is irrational, then a/b is also irrational.
If a and b are irrational, a/b can be either rational or irrational based on a and b values.

Answer 14

22/7 is not the fractional value of pi

look at the definition of rational irrational fractions

Answer 15

22/7 is rational since a and b are rational

Answer 16

yes, I agree. \(\large\color{black}{ \pi }\) is not 22/7. only approximately. but that doesn't make it a rational number. because you can write an approximately-equivalent fraction for any root as well.

Answer 17

then all numbers will be rational....but this can't happen.

Answer 18

oh i see its reapeating 6 decimals

Answer 19

anything that can be represented as simple fractions will not be regarded as irrational number

the take home assignment here is what @swissgirl is talking about, representation of \(\sf \huge\frac{p}{q} \). anything with repeating decimals to infinity is a rational number like \( \huge \frac{1}{3} = 0.\bar{3}\)

Answer 20

all numbers are irrational

Answer 21

well, if you try to get all numbers together, like a huge sum of all numbers, product of all numbers or something like that. than "all numbers", or the result from combining them would be irrational.

Answer 22

What does all numbers even mean???
Numbers are infinite