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?
24
15
5
4
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
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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?
24
15
5
4
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
The ∪ symbol means union, which means every elements in both sets. Note that there's a catch: the same number will not appear twice in this new union set. For example if we have:
A = {1, 3, 4, 5, 6, 7}
and
B = {1, 4, 8, 9, 15}
Then A ∪ B will be {1, 3, 4, 5, 6, 7, 8, 9, 15}.
write down all the elements of each set together
each value only needs to be accounted for one time, and one time only; so duplicates can be erased. what is left is the number of elements in the set for the solution
@kwashondap An example:
A = {1, 2, 3}
B = {2, 4, 5}
Find A ∪ B.
Remember that ∪ means union, which basically boils down to putting the two sets together, then eliminate the duplicates.
Firstly put them together: O = {1, 2, 2, 3, 4, 5}
Now that ∪ means no duplicates, so eliminate the extra 2 and you'll get the final set: A ∪ B = {1, 2, 3, 4, 5}.
O = {71, 71, 72, 73, 77, 77, 79, 83, 84, 89, 90, 91}
T = {70, 72, 76, 78, 81, 81, 84, 86, 86, 89, 90, 90}
lets go ahead and clean out the duplicates from each set
O = {71, 72, 73, 77, 79, 83, 84, 89, 90, 91}
T = {70, 72, 76, 78, 81, 84, 86, 89, 90}
now lets clean out the duplicates that each set has in common
O = {71, 73, 77, 79, 83, 84, 89, 90, 91}
T = {70, 72, 76, 78, 81, 86}
now that there are no longer any duplicate values, how many elements are left?