need help

[stacey elias]

identify each square root as a rational or irrational.

square root -196

 

[Eva Barragan]

this is an irational number
the reason for that is because there is no one number that can be multiplied by itself to equal the square root of -196

 

[stacey elias]

thank you

 

[Guest]

Correction

Actually, the square root of -196 is rational as the answer would be -14^2

 

[Matt]

Re: Correction

this is an irational number
the reason for that is because there is no one number that can be multiplied by itself to equal the square root of -196

Actually, the square root of -196 is rational as the answer would be -14^2

Both of you are wrong. The square roots, if they exist, are neither rational nor irrational. They are both complex with a nonzero imaginary part.

 

[zerodegrees]

"not so fast....

if the directions are rational or irrational.....

is the question the square root of -196, OR could it be -square root of 196?

slight, but pronounced difference.

 

[stacey elias]

this answer is rational right the square root is 14^2

 

[stacey elias]

this answer is rational because the square root is 14^2
am i right

 

[pka]

Why do you steadfastly refuse to read and answer the replies?

Is the problem I. \(\displaystyle \L
\sqrt { - 196}\) or II. \(\displaystyle \L
- \sqrt {196}\)??
You can just answer by writing I or II.

If it is I, the root is complex. Complex numbers are neither rational nor irrational.

If it is II then it is equal to −14 which is a negative integer and is rational.

 

[zerodegrees]

that's it....

PKA will not be ignored!!!!!!! :twisted:

seriously stacey, instead of blindly posting guesses. why don't you INTERACT with those around you??? talking can be fun and sometimes enjoyable. (unless it's your parents, what a drag.....)

Look, if Mr. Smartypants here is too much, over your head, you could always ask them to reexplain so that them so everyone is on the same page. it's this funny little word called "communication". :wink: