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anonymous
 3 years ago
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
anonymous
 3 years ago
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

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tyteen4a03
 3 years ago
Best ResponseYou've already chosen the best response.1The ∪ 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}.

tyteen4a03
 3 years ago
Best ResponseYou've already chosen the best response.1So, you put every element from both sets in a new set, then eliminate any duplicates in this new set.

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.0it helps if we know what your lost on ....

tyteen4a03
 3 years ago
Best ResponseYou've already chosen the best response.1@amistre64 Ninja'd :P

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.0write 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

tyteen4a03
 3 years ago
Best ResponseYou've already chosen the best response.1@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}.

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.0O = {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?
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