Asked by blue

What do you do to check whether a number is rational or irrational? In your explanation, use an example of an irrational and a rational number.
Please help me I don't know what to do.

Answers

Answered by Reiny
any number that can be expressed as a simple fraction of the form a/b, where b ≠ 0 is rational

rational --- from ratio --- a: b or a/b

A number which cannot be expressed as a simple fraction in the above form is irrational
irrational --> not rational
(irresponsible -- not responsible)

Any decimal which terminates is rational
any decimal which has a repeat is rational
any decimal which does not show any repeating decimals and which is never-ending is irrational

e.g.
4/7 --- rational
3.454545... rational
2.6789789789... rational
4.56556555655556... irrational
π --- irrational
√5 or any square root of a number which is not a perfect square is irrational

√16 -- rational, but √17 -- irrational
Answered by Anonymous
-12.161616
Answered by po778
i hope this is ok for me to use this
Answered by Alice in Jiskha land
well, it is po778 but, just don't copy and paste it on the essay question, u'll getta zero. So just copy n paste it then try to change the words a bit to make it look like it was from ur own words! >= )
Answered by Miss M
Thanks for that info Alice, but just remember there's a good chance we, your teachers, will still see all these responses and will know academic honesty was violated. =)
Answered by Alice in Jiskha land
seriously, none of my teachers have the letter M in their last name dumbo and my name ain't Alice
Answered by Alice in Jiskha land
we get it with the "honor code" pranks with the fake teachers that would'nt dare to even click this website
Answered by error
it should be fine to use just make sure to butcher it a bit
Answered by OCA vamp
wow im late :////////// halp meh -_-
Answered by Tymory
I'm over late i not connesus student i just need referrence
Answered by Kawaii Vampire gal
Thank chu~💜
Answered by Bobby
is there a simpler explanation available?
Answered by blank
im a connexus student thank u sooo much
Answered by furrealtho
crazy love the fake teacher vibes tho like we don't all know your another student playing a prank lol
ok thank you guys i didn't need the answers just needed an example but thank you
Answered by FAKE TEACHER
murmur, no cheating! No credit HAHAHAHA, WE WILL FIND YOU!!
spook, lol
Answered by 👩🏼‍💻💀
omg i need a simpler explanation
Answered by Pfft
This thread has me dyinggg stop pretending y’all accidentally got here WE ALL HERE TO CHEAT
Answered by Riki
9- Any number that can be expressed as a simple fraction is rational.
A number which cannot be expressed as a simple fraction in the above form is irrational.
Answered by a girl
yall its okay to look up your answers all this junk we learning will never be used irl so pls stop bashing other ppl you fools. A LOT of celebrities didnt go to college didnt do real work in school and cheated so to the people who are feeling bad jus dont your fine. jus make sure you dont come out of school sounding dumb asl.
Answered by That Crusader
a girl, how much money do you want to bet these celebrities don't know what an irrational number is. Yes, you won't need this stuff if you ae going to study rocks. But what if that on time, that one time, you need to know how to solve one. Now the whole celebrities stuff. Most celebrities are famous because of how they look, or how good their acting is in a movie. You look at someone like Tom Cruise. He only acts, but he is still an incredibly smart man. Now other celebrities such as the Kardashians will be forgotten in 50 years. But someone like Elon Musk won't be forgotten because of what he has done.
Answered by some guy
yes
Answered by PURPLE
Thank you everyone ❤🧡💛💚💙💜🤎🖤🤍
Answered by mrn1c3gu7
a irrational number is a never ending number, a rational number is a ending number.
Answered by 👩‍🏫 Ms.Sue
Students,Please Don't Cheat on the Test/Quiz, This is not appropriate to any school honor code.
Answered by R.I.P.
Hold up.....I thought Ms.Sue was dead.... This is the real Ms.Sue account cause of the teacher Icon....I think..
Answered by Samantha
WOW 🥺 you guys know that 😂 is a real teacher right😭😂
.
Answered by Samantha
Also good going R.I.P
Answered by Samantha
I'm from Connexus too😊.
Answered by Nmillz1
We’re all going to he11 for cheating LMAO💅🏼💅🏼💀💀💀💀
Answered by o9o
I love how ms.sue is 7 years late
Answered by Fake Teacher
MWAHAHAHA YOUR'E GETTING A PHONE CALL TODAY WHAMAMAAAAAA
Answered by UwU
Fake Teacher. Dude- like what? You sound like a kid. I- Oml....



-8th grade Connexus Student
teachers have no idea whos posting these lol @Miss M
Answered by connexus sux
what about question tennnn
being here doesn’t necessarily mean you are cheating 😅🤚‼️🕴🌂🦀🍠🐊🦋
Answered by maddy
thanks besties<3
Answered by ineedthemnow
yall are no help to getting the answer lol
Answered by Kamoto leap
This is not cheating if helps check your awncers
Stop the drama!!
Answered by YourAvragePerson
*eats popcorn* hehe funny lol, nom nom hehe. "WE WILL FIND YO BUM AN EXPELS YA!!" lol "U BRAKIN RULS AND U IS BADS"
Answered by bruhstopit
wow, way to be productive and ACTUALL HELP OUT. Jk you all are jam packing this thread with garbage and can't get help to people who need it. Just shut up unless you're saying something productive. Seriously. Bruh.
Answered by Not a math teacher
I am not a math teacher and the explanation given for this question is so confusing. Why would anyone want to copy this information? You can't even explain the steps. Just define what rational and irrational numbers are and then give an example.
Answered by person
how are we going the hell for checking are answers???
Answered by Wind of Change
well...thanks alot T_T
Answered by CoolMan
Guys are you all brain dead? "*eats popcorn* hehe funny lol, nom nom hehe. "WE WILL FIND YO BUM AN EXPELS YA!!" lol "U BRAKIN RULS AND U IS BADS"" Go back to 2009. And we are here to cheat.. all of us. We already know that so you don't have to say "This thread has me dyinggg stop pretending y’all accidentally got here WE ALL HERE TO CHEAT" because no one cares. It's a known fact that you can cheat on most things in school just not the the base stuff. If you you already know what you want to be in life then that's all the more true. Once you past school or in collage the things you learned in 8th grade you won't even remember.. So in short don't post unless you got something to share.

I'll post the answers to the Roots as Solutions to Equations, Cube Roots Quiz in a sec (grade 8 connections academy)
Answered by I only give questions
Bro its been 2 hours
Sorry had to wait till it was graded

1. Inno
2. 39 inches
3. -17 (with that fancy v thing)
4. every rational number is a real number
5. 6 and 7
6. -8.5
7. 69.4 ft/s
8. 9.8

you are on your own for the last two sry
Answered by Igotoconnexus
Rational numbers are those numbers that are integers and can be expressed in the form of x/y where both numerator and denominator are integers whereas irrational numbers are those numbers which cannot be expressed in a fraction. 🙂
Igotoconnexus is saintly
Answered by Ash
i just wanted help for delta math TvT
non of yall are helping, im just trying to not get dropped from the program. so can someone give the damn answer for the last one pls
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