suppose R={1,3,5,7,9,11,13,15,17} and D={3,6,9,12,15,18,21,24,27}, what is R◠D?

Answer 1

The notation R◠D represents the set difference between R and D.

To find R◠D, we need to remove any elements from R that are also present in D.

Looking at the given sets R={1,3,5,7,9,11,13,15,17} and D={3,6,9,12,15,18,21,24,27}, we can see that the common elements are 3 and 9.

After removing these elements from R, the set R◠D is {1, 5, 7, 11, 13, 17}.

Answer 2

what are all the subsets of {-8,4}?

Answer 3

The subsets of the set {-8, 4} are:

1. {} (the empty set)
2. {-8}
3. {4}
4. {-8, 4}

Therefore, the subsets of the set {-8, 4} are: {}, {-8}, {4}, {-8, 4}.