Question

6. Find B ∪ D.
B: {–3, –1, 3, 4, 9, 11}
D: {numbers divisible by 3 from 1 to 15} (1 point)
{3, 9}
{–3, –1, 3, 4, 9, 11}
{ }
{–3, –1, 3, 4, 6, 9, 11, 12, 15}

Answer 1

@ganeshie8 Do you know anything about this?

Answer 2

The set D would be {3, 6, 9, 12, 15 }

Answer 3

Now the union ∪ is going to be all elements from set B and D, without counting common elements twice.

Answer 4

What ok so what your saying is that its B or D because of the negative numbers correct?

Answer 5

Um I'm not sure what you mean. But here is the distinction between \(\cup\) and \(\cap\):Say you have two sets
\(A=\{-5, -2, 0, e, 1.9,\frac{31}{3}\}, B=\{-2, 0, 1.9,7,32\}\)

\(A\cap B=\{ -2,0,1.9\}\), choose only the elements common in both sets
\(A \cup B=\{ -5,-2,0,e,1.9,7,\frac{31}{3},32\}\), choose all elements from both sets (without counting common ones two times)

Answer 6

So can you figure out the answer in your problem?

Answer 7

So sorry man im totally lost in this subject just need to get through because im 4 weeks behind in work.

Answer 8

my guess would be B