A community for students.
Here's the question you clicked on:
 0 viewing
 2 years ago
If C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and D = {numbers divisible by 3 from 1 to 21}, what is C ∩ D?
{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 18, 21}
{3, 6, 9, 12, 15, 18, 21}
{3, 6, 9}
{ }
 2 years ago
If C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and D = {numbers divisible by 3 from 1 to 21}, what is C ∩ D? {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 18, 21} {3, 6, 9, 12, 15, 18, 21} {3, 6, 9} { }

This Question is Closed

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1I think it would help if you listed the numbers in set D

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Basically, D={3,6,9,12,15,18,21} You need to find numbers that are in set A AND set D to get C ∩ D

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Do you understand the part about getting the numbers in set D?

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1btw, I meant sets C and D.

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Numbers divisible by 3 from 121? 3 is divisible by 3 because it equals a whole number(1). 6/3=2 (Also a whole number). 9/3=3... etc. Better?

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0Yah i understand how to do that but i dont understand how to get the answer :/ Could u walk me throug it

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Sure. Do we agree that D={3,6,9,12,15,18,21}?

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1∩ means intersection which also means that the numbers in that set MUST be in the 2 sets surrounding it.

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1It basically means that the numbers in the intersection of the sets must be in BOTH sets.

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1So if A={2,4,6,7} and B={3,4,5,6}, A∩B would be {4,6} because 4 and 6 are in both sets A and B

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Now that you have both sets, match 'em up and see which numbers are in both. C = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} D={3,6,9,12,15,18,21}

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0Ohh Ty ^^ Can u help me with another on? please?

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Right. Which means that your answer should look like: A∩B={3,6,9}

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0If A = {vowels in the English alphabet} and B = {consonants in the English alphabet}, what is A B? {all letters in the English alphabet} {a, e, i, o, u} {b, c, d, f, g, h, j, k, l, m, n, p, q, r, s, t, v, w, x, y, z} { }

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1List both sets A and B, please. Also, I don't know what the relation between A and B is because you don't have anything in between A and B

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0there is supossed to be a " U" smble between the A and b on the last sentence and it stated A and B

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1That's easy, then.The answer is just all the letters of the alphabet. Consonants+vowels=letters of the alphabet.

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0O.o wow didnet think about that lol Thanks

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0Ill be posting a few more u acn help if u want

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1This would be a lot easier if OpenStudy made a Apple Application so I could write everything out...

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0They have a draw thingy

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1doesn't help. Have you tried it? My drawings always look atrocious.

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0lol ssame do u kno how to to dthis? If A = {0, 1, 2, 3} and B = {…−3, −2, −1}, what is A ∩ B? {…−3, −2, −1, 0, 1, 2, 3, …} {…−3, −2, −1} {0, 1, 2, 3} { }

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1It can also be dw:1347317896078:dw Not a circle, btw

darkbbn
 2 years ago
Best ResponseYou've already chosen the best response.0Ok ty and haha kinda looks like one ;)
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.