1. Choose the correct solution in roster form.

N is the set of natural numbers that are factors of 12.

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

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

C.{1, 2, 3, 4, 5, 6, 8, 12} * this is my answer

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

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

5r + 8 < 63

A. r

B. r<15

C. r<71

D. r<8

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

A.{2, 4, 6, 8}

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

C.{1, 3, 5, 7}

D.{1, 3, 5, 7, 8}

For problems 4-5, use the following information.

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.

4. A U

A. true

B. false

5. B A

A. true

B. false

Question

Mathematics

Gracelyn Coleman

18 May, 21:38

1. Choose the correct solution in roster form.

N is the set of natural numbers that are factors of 12.

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

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

C.{1, 2, 3, 4, 5, 6, 8, 12} * this is my answer

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

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

5r + 8 < 63

A. r

B. r<15

C. r<71

D. r<8

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

A.{2, 4, 6, 8}

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

C.{1, 3, 5, 7}

D.{1, 3, 5, 7, 8}

For problems 4-5, use the following information.

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.

4. A U

A. true

B. false

5. B A

A. true

B. false

+2

Answers (1)

Know the Answer?

Kadin Juarez · Answer 1

1.

8 is not a factor of 12.

Correct answer: B.{1, 2, 3, 4, 6, 12}

2.

5r + 8 < 63

5r < 55

r < 11

Answer: A. r

3.

A symbol is missing.

Are you looking for the complement of set P?

If so, answer is elements from the universal set not in set P.

Answer: C.{1, 3, 5, 7}

4.

Some symbols are missing, so I don't understand what the questions are.