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3 years ago

Can anyone help me with this problem

Mathematics

1 answer:

Rama09 [41]3 years ago

3 0

9514 1404 393

Answer:

8. A = {Delaware, New Jersey, Pennsylvania}

9. |B| = 3

Step-by-step explanation:

8. Dates prior to 1 Jan 1788 are those in 1787. The three states admitted in 1787 are listed as Delaware, Pennsylvania, New Jersey. It is usually convenient to list elements of a set in lexicographical order:

A = {Delaware, New Jersey, Pennsylvania}

9. The months June and July appear 3 separate times on the list, so there would be 3 elements in the set B.

|B| = 3

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