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8-4: Union & Intersection

Authored by Andrew Rooney

Mathematics

10th Grade

CCSS covered

Used 34+ times

8-4: Union & Intersection
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20 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Suppose A={factors of 20} and B={factors of 12}, what is  A\cap B  ?

{1, 2, 4}

{1, 2, 3, 4, 5, 6, 10, 12, 20}

{12, 20}

{3, 5, 6, 10, 12, 20}

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Let Set A be all of the girls in the classroom. Let Set B be all of the sophomores in the classroom. What is the complement of Set A?

The freshman, the juniors, and the seniors

The boys in the classroom

The girls who are not sophomores

The sophomores who are not girls

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Suppose Set A = {5, 10, 15, 20, 25, 30} and Set B = {10, 20, 30, 40, 50, 60}. What is  A\cup B  ?

{10, 20, 30}

{5, 15, 25, 40, 50, 60}

{5, 10, 15, 20, 25, 30, 40, 50, 60}

No Solution

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Use the numbers 1 through 20 as a sample space for the sets described below.

X = {multiples of 3}

Y = {multiples of 4}

Z = {factors of 12}

Which statement is true?

The intersection of X and Z is {3,6,12}

The union of Y and Z is {4}

The union of X and Y is {12}

The intersection of X, Y, and Z is {1,2,3,4,6,8,9,12,15,16,18,20}

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 Suppose Set A = {Factors of 24} and Set B = {Factors of 36}. What is  A\cap B  ?

{24, 36}

{1, 2, 3, 4, 6, 8, 9, 12}

{8, 9, 18, 24, 36}

{1, 2, 3, 4, 6, 12}

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Suppose A = {black, white, silver, gold}, M = {Silver, white, green}, and R = {green, white, blue}. Which set is equivalent to  \left(A\cup M\right)\cap R  ?

{green, white}

{silver, white}

{silver, white, green, blue}

{blue}

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Three sets are defined as follows.
W: {even integers}
X: {multiples of 3}
Z: \left\{W\cap X\right\}  
Which choice is an element of Z?

-9

-8

-7

-6

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