Let A = {101, 202, 303, 404, 505} and B = {101, 404}. What is A ∩ B?

A. {101, 404}

B. {202, 303, 505}

C. {101, 303, 505}

D. {101, 202, 303, 404, 505}

Question

Let A = {101, 202, 303, 404, 505} and B = {101, 404}. What is A ∩ B?

A. {101, 404}

B.  {202, 303, 505}

C. {101, 303, 505}

D. {101, 202, 303, 404, 505}

amistre64 · Answer

what does the upside down u tell us?

anonymous · Answer

I have absolutely no idea. I haven't ever seen it before

amistre64 · Answer

what do you know about set notations and rules?

anonymous · Answer

It means intersection.  Have you seen venn diagrams yet?

anonymous · Answer

This is just a pretest so no I haven't seen this before but I'd still like help even though the grade isn't a big one. I have seen a venn diagram but I haven't understood one

amistre64 · Answer

if you think of an intersection as a point where 2 roads cross.  the intersection itself contains the part of each road that they have in common.

an intersection of 2 sets are the elements that they have in common

amistre64 · Answer

the intersection of 2 lines is the point that they have in common can be another analogy

amistre64 · Answer

you are given 2 sets:

A = {101, 202, 303, 404, 505}
B = {101, 404}.

and you are asked what elements do they have in common ...

anonymous · Answer

I see. That's quite simple.... A would be my answer, correct?

amistre64 · Answer

correct

anonymous · Answer

Thank you :3

amistre64 · Answer

youre welcome