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Markitos

My teacher said i did these wrong can anyone explain how to properly solve these questions for me? it says i have to evaluate the expression i thought it was correct but now im confused 2. 5 |-4 + 3| = 15 3. -2 + 3 |-4| = -3 4. | -2 + -4| ----------- = 0 6 5. 3| -2+-6| + -3 = -8

  • one year ago
  • one year ago

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  1. SmokeysTheName
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    you have to get the absolute value sign alone first.

    • one year ago
  2. msingh
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    |dw:1359567381118:dw|

    • one year ago
  3. SmokeysTheName
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    so for number 2 divide 5 to both sides.

    • one year ago
  4. msingh
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    @Markitos , r u getting vat is done

    • one year ago
  5. msingh
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    |dw:1359567550593:dw|

    • one year ago
  6. msingh
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    @Markitos , solve the second part, and do take care of one thing that the expression which is in |dw:1359567749335:dw| sign becomes +ve when it is negative. this sign is called mod which converts -ve sign into +ve

    • one year ago
  7. Markitos
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    |dw:1359568063833:dw|

    • one year ago
  8. Markitos
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    and how does the -1 become a positive one?

    • one year ago
  9. msingh
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    because it is in mod sign , as i have already told that the expreesion in this mod sign becomes always +ve , if it is -ve

    • one year ago
  10. Markitos
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    ok

    • one year ago
  11. Markitos
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    what about the last part 5= 15

    • one year ago
  12. Markitos
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    or is it 5 | | 15

    • one year ago
  13. msingh
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    as LHS is not equal to the RHS So |dw:1359568254047:dw|

    • one year ago
  14. Markitos
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    and where does the 11 come from

    • one year ago
  15. Markitos
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    how would i type that in word

    • one year ago
  16. msingh
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    no there is no 11, when LHS is not equal to RHS, then we put equal sign but we place a cross sign on that first write equal sign

    • one year ago
  17. msingh
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    |dw:1359568380656:dw| like this

    • one year ago
  18. msingh
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    then draw a line which cuts it like this|dw:1359568409476:dw|

    • one year ago
  19. Markitos
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    ok

    • one year ago
  20. Markitos
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    got it

    • one year ago
  21. Markitos
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    now is am i finished with this one

    • one year ago
  22. msingh
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    yup

    • one year ago
  23. msingh
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    k.. do the second part, so that i should leave

    • one year ago
  24. Markitos
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    what do i need to do for the second part

    • one year ago
  25. msingh
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    solve it

    • one year ago
  26. Markitos
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    how

    • one year ago
  27. Markitos
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    im very bad at math can you explain to me how to

    • one year ago
  28. Markitos
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    i get the first part of what u said

    • one year ago
  29. msingh
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    -2 + 3 |-4| = -3 -2 + 3 (4) = -3 -2 +12 = -3

    • one year ago
  30. msingh
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    |dw:1359568963469:dw|

    • one year ago
  31. msingh
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    hope u understand and try the next parts also.

    • one year ago
  32. Markitos
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    ok i get that

    • one year ago
  33. Markitos
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    so if the number in the bracket is negative then it becomes positive and you put parenthesis around correct

    • one year ago
  34. Markitos
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    and how did you get the nine and 3

    • one year ago
  35. msingh
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    i just put the bracket to see the difference, it doesnot matter either u put bracket or not.

    • one year ago
  36. msingh
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    -2+12=9

    • one year ago
  37. msingh
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    i m leaving now, if any problem , then ask me later on

    • one year ago
  38. Markitos
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    ok and for this 2 + 3 (4) how did you get the 12

    • one year ago
  39. Markitos
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    ok

    • one year ago
  40. precal
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    |dw:1359576231730:dw|order of operation, you must multiply first then add

    • one year ago
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