Question

Choose the correct solution in roster form.

N is the set of natural numbers that are factors of 12.
(1 point)
Responses

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

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

{1, 2, 3, 4, 5, 6, 8, 12}
{1, 2, 3, 4, 5, 6, 8, 12}

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

Answer 1

Write the solution to the inequality in set-builder notation.

5r + 8 < 63
(1 point)
Responses

{r | r < 11}
{ r | r < 11}

{r | r < 15}
{ r | r < 15}

{r | r < 71}
{ r | r < 71}

{r | r < 8}
{ r | r < 8}

Answer 2

Suppose U = {1, 2, 3, 4, 5, 6, 7, 8} is the universal set and P = {2, 4, 6, 8}. What is P' ?
(1 point)
Responses

{2, 4, 6, 8}
{2, 4, 6, 8}

{1, 2, 3, 4, 5, 6, 7, 8}
{1, 2, 3, 4, 5, 6, 7, 8}

{1, 3, 5, 7}
{1, 3, 5, 7}

{1, 3, 5, 7, 8}

Answer 3

Use the following information to answer the question.

Suppose U = {0, 1, 2, 3, 4, 5, 6}, A = {2, 4, 6}, and B = {1, 2, 3}. Tell whether each statement is true or false.
Asubset of or equal toU
(1 point)
Responses

true
true

false

Answer 4

Use the following information to answer the question.

Suppose U = {0, 1, 2, 3, 4, 5, 6}, A = {2, 4, 6}, and B = {1, 2, 3}. Tell whether each statement is true or false.
Bsubset of or equal toA
(1 point)
Responses

true
true

false

Answer 5

{1, 2, 3, 4, 6}

Answer 6

{r | r < 11}

Answer 7

{1, 3, 5, 7}

Answer 8

false

Answer 9

false