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SephI

I need help with a venn diagram. Is anyone good at those?

  • one year ago
  • one year ago

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  1. SephI
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    At an auto show, a care dealer asked the first 10 visitors their ages and the kinds of cars they own. The venn diagram shows the details. |dw:1350207143022:dw| Based on the diagram, which of the following represents the ages of car owners in the set (N ∪ ~L) ∪(L ∩ M) {29, 31, 64} {29, 31, 45, 64,} {29, 31, 38, 42, 45, 64} {29, 31, 38, 42, 44, 45, 64}

    • one year ago
  2. SephI
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    @hartnn

    • one year ago
  3. SephI
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    N ∪ ~L That would be all of N, with exclusion to L, correct?

    • one year ago
  4. campbell_st
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    you need to label your circles, L, N, M

    • one year ago
  5. SephI
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    |dw:1350207517903:dw|

    • one year ago
  6. SephI
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    Based on the diagram, which of the following represents the ages of car owners in the set (N ∪ ~L) ∪(L ∩ M) {29, 31, 64} {29, 31, 45, 64,} {29, 31, 38, 42, 45, 64} {29, 31, 38, 42, 44, 45, 64

    • one year ago
  7. campbell_st
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    I think you diagrams are a little off... as there is a 38 in L and 38 in the intersection of M and N... |dw:1350207574575:dw|

    • one year ago
  8. campbell_st
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    but anyway isn't the union of N and ~L the same as the union of N and M excluding 38, 44.

    • one year ago
  9. SephI
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    I don't know. That's why I asked you guys...

    • one year ago
  10. SephI
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    @Hero @hba :(

    • one year ago
  11. SephI
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    @sauravshakya ? ;-;

    • one year ago
  12. SephI
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    Hartnn to save the day ;-; At an auto show, a care dealer asked the first 10 visitors their ages and the kinds of cars they own. The venn diagram shows the details. |dw:1350210016776:dw| Based on the diagram, which of the following represents the ages of car owners in the set (N ∪ ~L) ∪(L ∩ M) {29, 31, 64} {29, 31, 45, 64,} {29, 31, 38, 42, 45, 64} {29, 31, 38, 42, 44, 45, 64}

    • one year ago
  13. hartnn
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    i didn't properly understand the question, where is that 38 ? can u plz post the screenshot of question?

    • one year ago
  14. SephI
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    I cannt post the screenshot question. I can't leave the tab. I have two computers. The 38 is grouped with the 42. Here, check this out. scroll down some: http://www.purplemath.com/modules/venndiag2.htm

    • one year ago
  15. hartnn
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    what did u give that reference ? (N ∪ ~L) = all numbers except 38 (L ∩ M) =45 and their union will be all numbers except 38, which does not seem to be an option :\

    • one year ago
  16. SephI
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    Oh, okay. Can we go one step at a time, please c: (N ∪ ~L) would be all the numbers of M and L, with exclusion to L? So just all numbers in M?

    • one year ago
  17. SephI
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    OH WAIT! (N ∩ ~L) ∪(L ∩ M) <-----

    • one year ago
  18. hartnn
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    ~L = all number except those in L = {35,51,42,38,29,31,64} got this ?

    • one year ago
  19. hartnn
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    aahaaa!

    • one year ago
  20. SephI
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    (N ∩ ~L) This will be what N and L have in common?

    • one year ago
  21. hartnn
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    N and ~L in common

    • one year ago
  22. hartnn
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    did u get ~L ?

    • one year ago
  23. hartnn
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    ~L = all number except those in L = {35,51,42,38,29,31,64} got this ?

    • one year ago
  24. SephI
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    Yes, so all numbers in common with N except L?

    • one year ago
  25. hartnn
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    'so all numbers in common with N except L?' <--for what ? ok, since u get ~L= {35,51,42,38,29,31,64}, we already have N = {38,42,29,64,31,44} now just find common elements between these 2 sets to get (N ∩ ~L)

    • one year ago
  26. hartnn
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    ∩ = common elements = and

    • one year ago
  27. SephI
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    ~L All numbers in the diagram except those in L N = all in L Now we just find the common elements, correct?

    • one year ago
  28. hartnn
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    ~L All numbers in the diagram except those in L<--\(\huge \color{red}{\checkmark}\) N = all in L<---?? NO

    • one year ago
  29. hartnn
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    N =all elements in circle N

    • one year ago
  30. SephI
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    Oh okay! ~L= {35,51,42,38,29,31,64}, N = {38,42,29,64,31,44} {29, 31, 38, 42, 64} Correct?

    • one year ago
  31. hartnn
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    \(\huge \color{red}{\checkmark}\)

    • one year ago
  32. SephI
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    {29, 31, 38, 42, 64} ∪ (L ∩ M Is that what we're left with?

    • one year ago
  33. hartnn
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    (L ∩ M ) = common elements between L and M = ??

    • one year ago
  34. SephI
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    Ok. Give me a second. I have to go do something, I will be back in five minutes. Will you be on?

    • one year ago
  35. hartnn
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    yes

    • one year ago
  36. SephI
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    Yes

    • one year ago
  37. hartnn
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    (L ∩ M ) = common elements between L and M = ??

    • one year ago
  38. SephI
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    {35, 38, 42, 45, 51} {38, 44, 45} {38, 45} Correct?

    • one year ago
  39. hartnn
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    consider those 2 38's as different elements

    • one year ago
  40. hartnn
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    so it will be only 45

    • one year ago
  41. SephI
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    Wait. I don't get why they're different elements?

    • one year ago
  42. hartnn
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    because they are on different circles.....and final answer will remain same whether u consider 38 or not...but appropiate will be to NOT consider

    • one year ago
  43. SephI
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    {29, 31, 38, 42, 64} ∪ {45} Correct?

    • one year ago
  44. hartnn
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    \(\huge \color{red}{\checkmark}\) and that equals ?

    • one year ago
  45. SephI
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    Now this means we put the numbers together, and cancel like terms?

    • one year ago
  46. hartnn
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    cancel ? not totally, keep exactly 1 instance example {25,26,27}U{26,27,28}={25,26,27,28}

    • one year ago
  47. SephI
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    {29, 31, 38, 42, 64} ∪ {45} {29, 41, 38, 42, 45, 64} Correct?

    • one year ago
  48. SephI
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    {29, 31, 38, 42, 45, 64}

    • one year ago
  49. hartnn
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    \(\huge \color{red}{\checkmark}\)

    • one year ago
  50. SephI
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    Thanks XD

    • one year ago
  51. hartnn
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    Welcomes ^_^

    • one year ago
  52. SephI
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    How do you do the checkmark?

    • one year ago
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