Question

The set O represents the maximum temperatures, in degrees Fahrenheit, recorded in the city of Orlando in a year.

O = {71, 71, 72, 73, 77, 77, 79, 83, 84, 89, 90, 91}

The set T represents the maximum temperatures, in degrees Fahrenheit, recorded in the city of Tampa in a year.

T = {70, 72, 76, 78, 81, 81, 84, 86, 86, 89, 90, 90}

How many elements are in the set O ∪ T?

Answer 1

O ∪ T = {set of items that are in either set O or T}

O ∪ T = {71, 71, 72, 73, 77, 77, 79, 83, 84, 89, 90, 91, 70, 72, 76, 78, 81, 81, 84, 86, 86, 89, 90, 90}

O ∪ T = {70,71,72,73,76,77,78,79,81,83,84,86,89,90}

Answer 2

Note: I'm basically combing the two sets and then removing the duplicates