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anonymous

  • one year ago

Use the commutative property to identify which expression is equal to (6+4)*5? a. 5*(6+4) <----my answer b 5*6+4*6 c 5+(6*4) d (6+4*5) Use the distributive property to decide which of the following is equivalent to 2(3 + 5x)? Select all that apply. 2(3) + 2(5x) 6 + 10x 2 + 8x -6x Which of the following is equivalent to -3(x - 7y)? -3(x) - 7y -3x - 21y -3x + 21y 18xy

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  1. anonymous
    • one year ago
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    @hartnn

  2. Jack1
    • one year ago
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    commutative property question: yep, i agree with your answer

  3. anonymous
    • one year ago
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    ok thank you

  4. Jack1
    • one year ago
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    distributive property question... which do u think and why?

  5. anonymous
    • one year ago
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    i thought A and B

  6. Jack1
    • one year ago
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    yep, 100%, perfect!

  7. Jack1
    • one year ago
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    now just the 3rd question... which answer do u believe is correct?

  8. anonymous
    • one year ago
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    B or C?

  9. Jack1
    • one year ago
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    remember: positive number x positive number = positive number (eg 2 x 3 = 6) negative number x positive number = negative number (eg 2 x (-3) = -6) negative number x negative number = positive number (eg (-2) x (-3) = 6)

  10. Jack1
    • one year ago
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    so which: B or C...?

  11. UsukiDoll
    • one year ago
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    distribute the -3 all over (x-7y) for -3(x - 7y)

  12. anonymous
    • one year ago
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    b

  13. UsukiDoll
    • one year ago
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    no for a sign reason . a negative times a negative is a positive.

  14. UsukiDoll
    • one year ago
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    ex. -2 x -2 = 4

  15. anonymous
    • one year ago
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    so it would be C?

  16. UsukiDoll
    • one year ago
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    yes distribute -3 all over (x-7y) -3(x) + (-7y)(-3) -3x+21y

  17. anonymous
    • one year ago
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    ok thank you

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