Question

Question 2 (Multiple Choice Worth 2 points)

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

O = {49, 50, 50, 55, 56, 60, 65, 65, 70, 71, 72, 72}

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

T = {52, 54, 55, 59, 59, 61, 62, 68, 68, 70, 74, 75}

How many elements are in the set O ∪ T?

2

5

17

24

Answer 1

55,

Answer 2

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

Answer 3

Yes it does but the lt time I had put 4 it was wrong

Answer 4

Wait, I had read the question wrong, I'm sorry. You would find all the unique numbers in both of the sets combined (so you list all of the numbers, but don't list a number twice)

Answer 5

So here it would be:
70, 71, 72, 73, 76, and so on

Answer 6

So what would the answer be

Answer 7

How many different numbers are in both sets?

Answer 8

24

Answer 9

Not exactly. Remember, you can't count a number twice, so it would be 70, 71, 72, 73, 76, 77, 78, 79, 81, 83, 84, 86, 89, 90, and 91, for a total of 15 numbers

Answer 10

Oh okay that makes sense can you help me with another problem please

Answer 11

Find B D.
B: {−2, −1, 1, 4, 7, 12}
D: {numbers divisible by 3 from 1 to 15}

{12}

{−2, −1, 1, 3, 4, 7, 12}

{−2, −1, 1, 3, 4, 6, 7, 9, 12, 15}

{ }

Answer 12

U

Answer 13

Simply asking which numbers occur in both set of numbers (Union)

90 does! :) 89, 84, 72

So, O ∪T = {72, 84, 89, 90} and therefore has 4 elements