DISCRETE MATH

If A = {x/x is a positive even integer less than 20}, which of the following is TRUE?

• 15 ∈ A

• 16 ∉ A

• 18 ∈ A

• 20 ∈ A

Tags

CCSS.6.EE.B.5

If U = {x/x is a whole number less than 20} and A = {1, 3, 5, 7, 9, 11, 13, 15, 17}. Find A^c.

• { 2, 4, 6, 8, 10, 12, 14, 16, 18 }

• { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18 }

• 2, 4, 6, 8, 10, 12, 14, 16, 18, 20 }

• { 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 28 }

Tags

CCSS.HSS.CP.A.1

• X  Y = { 4, 7 }

Tags

CCSS.HSS.CP.A.1

• { 3, 4, 5, 6, 7 }

• { 3, 4, 5, 6, 7, 10 }

• { 0, 3, 4, 5, 6, 7, 10 }

• { 0, 3, 4, 5, 6, 7, 8, 10 }

Tags

CCSS.HSS.CP.A.1

If set P and set Q are disjoints then their intersection is _____.

• empty

• P

• Q

• P or Q

Tags

CCSS.HSS.CP.A.1

If set A has 3 elements, find the cardinality of its power set.

• 8

• 16

• 24

• 32

If M = {3, 5} and N = {2, 4, 6}, find M × N. 

• M × N = {(3, 2), (3, 4), (3, 6)}

• M × N = {(3, 2), (3, 4), (3, 6), (5, 2), (5, 4)}

• M × N = {(3, 2), (3, 4), (5, 2), (5, 4), (5, 6)}

• M × N = {(3, 2), (3, 4), (3, 6), ((5, 2), (5, 4), (5, 6)}

Given: P = { 1, 2, 3 } and Q = { set of natural numbers between 7 and 11 }. Which of the following statements is TRUE?

• P and Q are equal

• P and Q are equivalent

• P and Q are joint

• P and Q are empty

• reflexive

• symmetric

• transitive

• anti-symmetric

• reflexive

• symmetric

• transitive

• anti-symmetric