Find B D.
B: {−3, −1, 3, 4, 9, 11}
D: {numbers divisible by 3 from 1 to 15}

{3, 9}

{−3, −1, 3, 4, 9, 11}

{ }

{−3, −1, 3, 4, 6, 9, 11, 12, 15}
@magbak
@bahrom7893

Question

Find B  D.
B: {−3, −1, 3, 4, 9, 11}
D: {numbers divisible by 3 from 1 to 15}

 {3, 9}

 {−3, −1, 3, 4, 9, 11}

 { }

 {−3, −1, 3, 4, 6, 9, 11, 12, 15}
@magbak 
@bahrom7893

bahrom7893 · Answer

B what D?

bahrom7893 · Answer

You need to look at your question before posting.

magbak · Answer

Is it union or what is it.

anonymous · Answer

the union set is the the set that contain all the elements present in both sets (write each element just once)

B: {−3, −1, 3, 4, 9, 11}
D:{3,6,9,12,15}

so BUD:{−3, −1, 3, 4, 6, 9, 11, 12, 15}

anonymous · Answer

AUB

bahrom7893 · Answer

ziko, can you please not give away the answer?

bahrom7893 · Answer

shahbaaz, I just helped you solve a problem very similar to this. Use that example to solve the rest.

anonymous · Answer

its either a or d right ?

bahrom7893 · Answer

Which one do you think it is, and why?

anonymous · Answer

D because a and b both have them in common

bahrom7893 · Answer

Well they do have elements in common, but which elements do you need? Don't guess, build  the resulting set. Compare that to your choices.

anonymous · Answer

A?

bahrom7893 · Answer

Still guessing...

anonymous · Answer

b/c i thought d was right

bahrom7893 · Answer

Okay, what is this:
D: {numbers divisible by 3 from 1 to 15}
Can you write D out for me?
(I mean the set itself)