Which property was used to simplify the expression?

3c + 9c + 4 = 3c + 4c + 9

distributi...

Mathematics, 04.10.2020 18:51 liliumflower19

# Which property was used to simplify the expression?

3c + 9c + 4 = 3c + 4c + 9

distributive property

commutative property

associative property

inverse property

Answers: 3

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The quadratic function y = -x2 + 10x - 8 models the height of a trestle on a bridge. the x-axis represents ground level. to find where the section of the bridge meets ground level, solve 0 = -x2 + 10x - 8. where does this section of the bridge meet ground level? choose an equation that would be used to solve 0 = -x2 + 10x β 8 (x + 25)2 = β8 (x β 5)2 = 17 (x β 10)2 = 25 solve the equation to find where the trestle meets ground level. enter your answers from least to greatest and round to the nearest tenth. the trestle meets the ground at units and units.

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