Which of the following statements about parallelograms are always true? area = length x width. opposite sides are congruent. diagonals are congruent. adjacent angles are supplementary.

Opposite sides are congruent.

Diagonals are congruent.

Adjacent angles are supplementary.

Step-by-step explanation:

Great question, it is always good to ask away and get rid of any doubts that you may be having.

Since we are working with a parallelogram we should first know the properties that this figure has. The properties are the following

Since we now know all the properties of a parallelogram we can determine which of the statements are true. Therefore the true statements from the question are the following,

Opposite sides are congruent.

Diagonals are congruent.

Adjacent angles are supplementary.

Therefore all the statements were true EXCEPT for the first one.

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step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a