anonymous
  • anonymous
The number -4 does NOT belong to which set of numbers? a.whole numbers b.rational numbers c.intergers c.real number
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
jim_thompson5910
  • jim_thompson5910
were you able to get anywhere?
anonymous
  • anonymous
nope
jim_thompson5910
  • jim_thompson5910
can -4 be written as a fraction of two integers

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
help? :(
jim_thompson5910
  • jim_thompson5910
first off we can eliminate choice D because -4 is definitely a real number
anonymous
  • anonymous
no
jim_thompson5910
  • jim_thompson5910
why not? we can easily do -4 = -4/1
anonymous
  • anonymous
ok
jim_thompson5910
  • jim_thompson5910
so that means -4 is definitely a rational number
anonymous
  • anonymous
oh.. i thought fractions couldnt b negitive
jim_thompson5910
  • jim_thompson5910
yes they can be
anonymous
  • anonymous
oh okay
jim_thompson5910
  • jim_thompson5910
the set of integers is the set of negative and positive whole numbers the set of whole numbers is the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, ...} notice how the set of integers includes negatives, but the set of whole numbers does not
anonymous
  • anonymous
what does irrational numer mean?
jim_thompson5910
  • jim_thompson5910
irrational is the complete opposite of rational
jim_thompson5910
  • jim_thompson5910
irrational = not rational
jim_thompson5910
  • jim_thompson5910
so something like \(\large \sqrt{2}\) is irrational
anonymous
  • anonymous
rational =?
jim_thompson5910
  • jim_thompson5910
because this number cannot be written as a fraction of two whole numbers
jim_thompson5910
  • jim_thompson5910
rational = any number that can be written as a fraction of two whole numbers
anonymous
  • anonymous
ohh okay :)
jim_thompson5910
  • jim_thompson5910
glad it's all clicking
anonymous
  • anonymous
can u help me with another question?
jim_thompson5910
  • jim_thompson5910
so what's the final answer to this one
jim_thompson5910
  • jim_thompson5910
sure I can help with another, but I just want to make sure you got the answer
anonymous
  • anonymous
c
jim_thompson5910
  • jim_thompson5910
no -4 is definitely an integer
jim_thompson5910
  • jim_thompson5910
integers are whole numbers but they include both positive and negative the set of whole numbers is only positive or 0
anonymous
  • anonymous
ik !! sorry i was looking at a different problem lol ur right. but i need help with this one as well..
anonymous
  • anonymous
\[\sqrt{7}\]
anonymous
  • anonymous
is irrational right?
jim_thompson5910
  • jim_thompson5910
that is irrational, yes you are correct
anonymous
  • anonymous
:D
jim_thompson5910
  • jim_thompson5910
you cannot represent that as fraction of two whole numbers, so it is irrational nice work
anonymous
  • anonymous
\[ A \cup B\]
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
2, 4 correct ?
anonymous
  • anonymous
@jim_thompson5910
jim_thompson5910
  • jim_thompson5910
that's if the U was upside down
jim_thompson5910
  • jim_thompson5910
2,4 is in both sets...ie the intersection of the two sets
jim_thompson5910
  • jim_thompson5910
so IF the problem was \[\large A \cap B\] then {2,4} would be the answer
anonymous
  • anonymous
its 0,1,3,6,8 ?
jim_thompson5910
  • jim_thompson5910
A U B is just the combination of both sets A and B so it's any number that's in A or in B (or both)
jim_thompson5910
  • jim_thompson5910
0,1,3,6,8 is closer, but still no

Looking for something else?

Not the answer you are looking for? Search for more explanations.