20 questions
If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?
{3, 5, 7}
{2, 3, 5, 7}
{2, 3, 5, 7, 9}
{1, 2, 3, 5, 7, 9}
Write the following solution in set builder notation:
x ≥ -2
{ x | x ≥ 2 }
{ x | x ≥ -2 }
{ x ≥ -2 }
{ x | x ≤ -2 }
Find n(A) when
A = {14, 16, 18, 20, 22, 24}
6
4
12
even numbers
A = {x : x is a letter in the word SEAT}
B = {x : x is a letter in the word TASTE}
Determine if these two sets are equal or equivalent.
Not equal because seat has 4 letters and taste has 5 letters.
Equivalent because they have the same letters
Equal because each set has the same cardinality and the same letters.
If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∪ B?
{3, 5, 7}
{2, 3, 5, 7}
{2, 3, 5, 7, 9}
{1, 2, 3, 5, 7, 9}
If A = {1, 3, 5, 7, 9} and B = {2, 3, 5, 7}, what is A ∩ B?
{3, 5, 7}
{2, 3, 5, 7}
{2, 3, 5, 7, 9}
{1, 2, 3, 5, 7, 9}
If
P = {0, 1, 2, 3, 4}, Q = {4, 6, 8}
R = {6, 12, 18} Then what is (P ∩ Q) ∪ (Q ∩ R)?
{4}
{4, 6}
{4, 6, 8}
{1, 2, 3, 4, 6, 8}
If
A = {1, 3, 5, 15},
B = {2, 3, 5, 7}
C = {2, 4, 6, 8}
then what is (A U B) ∩ C ?
{1,3,5}
{1,2,3}
{2,3,5}
{2}
Let A={1, 3, 4} and B={x|x is an even whole number less than 9}. Find A U B
{1, 3, 4}
{1, 2, 3, 4, 6,8}
{1, 2, 3, 4, 5, 6, 7, 8}
{1, 2, 3, 4, 5, 6, 7}
Which of the following represents the shaded region?
A union B
A intersect B
A ⊂ B
B ⊂ A