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anonymous

  • one year ago

What type of property is this? (9*-4) * 7 = 7 * (9*-4)

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  1. anonymous
    • one year ago
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    its equal to itself

  2. anonymous
    • one year ago
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    Have a paper that says commutative, associate, identity, inverse, and distributive.

  3. anonymous
    • one year ago
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    i think identity then

  4. mathstudent55
    • one year ago
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    Notice that inside the parentheses, the 9 * (-4) remained the same. Think of 9 * (-4) as y. What property does y * 7 = 7 * y show?

  5. anonymous
    • one year ago
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    because if its equal to itself then its identical

  6. anonymous
    • one year ago
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    well if u divide both sides by 7 then u have y = y

  7. anonymous
    • one year ago
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    Commutative multiplication?

  8. mathstudent55
    • one year ago
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    All that changed was the order of the multiplication. Commutative: you can change order Associative: you can change grouping Identity: a * 1 = a (it's a property of 1 in multiplication). Inverse: a * 1/a = 1 (reciprocals) Distributive: a(b + c) = ab + ac

  9. mathstudent55
    • one year ago
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    Correct. To me it looks like the commutative property of multiplication.

  10. anonymous
    • one year ago
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    Thank you. That's what I had. Just wanted to double check.

  11. mathstudent55
    • one year ago
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    You're welcome.

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