Which statements are true?

Select each correct answer.

All quadrilaterals are parallelograms.

All trapezoids are quadrilaterals.

All rhombuses are parallelograms.

All rhombuses are squares.

All quadrilaterals are parallelograms

All trapezoids are quadrilaterals

All rhombuses are parallelograms

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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