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kwashondap
Group Title
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
 one year ago
 one year ago
kwashondap Group Title
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
 one year ago
 one year ago

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tyteen4a03 Group TitleBest ResponseYou've already chosen the best response.1
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}.
 one year ago

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

kwashondap Group TitleBest ResponseYou've already chosen the best response.0
still lost
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
it helps if we know what your lost on ....
 one year ago

tyteen4a03 Group TitleBest ResponseYou've already chosen the best response.1
@amistre64 Ninja'd :P
 one year ago

kwashondap Group TitleBest ResponseYou've already chosen the best response.0
the whole thing
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
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
 one year ago

tyteen4a03 Group TitleBest 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}.
 one year ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.0
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?
 one year ago
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