1 - which is the intersection of the sets {2, 3, 5, 7} and {2, 5, 11, 13}?
1. null set
2. {2, 3, 5, 7, 11, 13}
3. {2, 5}
4. {3, 7, 11, 13}
2 - which is the set of odd numbers between three and five?
1. {4}
2. {3, 4, 5}
3. all real numbers.
4. null set.
3 - what is the intersection of the sets c = {5, 7, 10, 13, 19} and d = {3, 9, 14, 15}?
1. {3, 19}
2. {5, 7, 9, 10, 13, 14, 15, 19}
3. {5, 9, 14}
4. null set
4 - find the intersection of the three sets: a = {-2, 7, 8, 9}, b = {-2, 5, 9,}, c = {-2, 5, 9}
1. {-2, 5, 8, 9}
2. {-2, 5, 7, 8, 9}
3. {-2, 9}
4. null set
5 - which is the union of the two sets d = {0, 10, 12, 18, 19} and e =
[18,19}?
1. {0, 19}
2. {18, 19}
3. {0, 10, 12, 18, 19}
4. null set
6 - which value for x makes the open sentence true?
8 ⋅ x + 1 + = 3 ⋅ x² - 2
1. 5
2. 4
3. 3
4. 2
7. which value of x makes the open sentence true?
26 - x ² > 4x - 20
1. 8
2.7
3. 6
4. 5
8. which symbol creates a true sentence when x equals 3?
5 ² + (x - 2)² - 25
1. =
2. >
3. <