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11 October, 10:24

1. Choose the correct solution in roster form.

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

{1, 2, 3, 4, 6}

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

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

{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

r<11

r<15

r

r

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

{2, 4, 6, 8}

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

{1, 3, 5, 7}

{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

true

false

5. B A

true

false

+2
Answers (1)
  1. 11 October, 10:54
    0
    1) 2nd answer 2) 11 3) 3rd answer 4) false 5) true
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