Question

Could you help with a Algebra problem (unions and intersections)? Got stuck on this ninth one.


Construct the appropriate number sets with the given information. Use the sets to match the following:

Given

a = Ø

b = B

c = then A ∪ B = B

d = A

e = then A ∩ B = B


1. If A union B
2. A union C
3. A intersect B
4 . A intersect C
5. B intersect C


I think that 1 matches {1, 2, 3, 4, 5, 6}
I think that 4 matches {1, 3, 5}
I think that 3 matches {2, 4}
I think that 2 matches {1, 2, 3, 4, 5}
I think that 5 matches null, or empty set

Answer 1

..so which one is the given...which one is the question...and which one is your answer?

Answer 2

ok, the given is this:

Construct the appropriate number sets with the given information. Use the sets to match the following:

Given

a = Ø

b = B

c = then A ∪ B = B

d = A

e = then A ∩ B = B

Answer 3

Then the options (this is a matching exercise):

1. If A union B
2. A union C
3. A intersect B
4 . A intersect C
5. B intersect C


I think that 1 matches {1, 2, 3, 4, 5, 6}
I think that 4 matches {1, 3, 5}
I think that 3 matches {2, 4}
I think that 2 matches {1, 2, 3, 4, 5}
I think that 5 matches null, or empty set1. If A union B
2. A union C
3. A intersect B
4 . A intersect C
5. B intersect C


I think that 1 matches {1, 2, 3, 4, 5, 6}
I think that 4 matches {1, 3, 5}
I think that 3 matches {2, 4}
I think that 2 matches {1, 2, 3, 4, 5}
I think that 5 matches null, or empty set

Answer 4

Does this clear things up?

Answer 5

that last comment of yours.....is that a typo?

Answer 6

what's C?

Answer 7

Yes, yes it is :) My apologies..

C is c = then A ∪ B = B

Answer 8

based on your answer
A = {1, 2, 3, 4, 5}
B = {2, 4, 6}
C = {1, 3 ,5}
If the number sets are like above then your answer is right.

.. still haven't understand the "Given" part lol

Answer 9

Given is like the options.. but thanks for your help...