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SephI

  • 2 years ago

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

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  1. SephI
    • 2 years ago
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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}

  2. SephI
    • 2 years ago
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    @hartnn

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

  4. campbell_st
    • 2 years ago
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    you need to label your circles, L, N, M

  5. SephI
    • 2 years ago
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    |dw:1350207517903:dw|

  6. SephI
    • 2 years ago
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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

  7. campbell_st
    • 2 years ago
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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|

  8. campbell_st
    • 2 years ago
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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.

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

  10. SephI
    • 2 years ago
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    @Hero @hba :(

  11. SephI
    • 2 years ago
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    @sauravshakya ? ;-;

  12. SephI
    • 2 years ago
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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}

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

  14. SephI
    • 2 years ago
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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

  15. hartnn
    • 2 years ago
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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 :\

  16. SephI
    • 2 years ago
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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?

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

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

  19. hartnn
    • 2 years ago
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    aahaaa!

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

  21. hartnn
    • 2 years ago
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    N and ~L in common

  22. hartnn
    • 2 years ago
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    did u get ~L ?

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

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

  25. hartnn
    • 2 years ago
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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)

  26. hartnn
    • 2 years ago
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    ∩ = common elements = and

  27. SephI
    • 2 years ago
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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?

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

  29. hartnn
    • 2 years ago
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    N =all elements in circle N

  30. SephI
    • 2 years ago
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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?

  31. hartnn
    • 2 years ago
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    \(\huge \color{red}{\checkmark}\)

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

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

  34. SephI
    • 2 years ago
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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?

  35. hartnn
    • 2 years ago
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    yes

  36. SephI
    • 2 years ago
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    Yes

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

  38. SephI
    • 2 years ago
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    {35, 38, 42, 45, 51} {38, 44, 45} {38, 45} Correct?

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

  40. hartnn
    • 2 years ago
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    so it will be only 45

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

  42. hartnn
    • 2 years ago
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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

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

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

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

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

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

  48. SephI
    • 2 years ago
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    {29, 31, 38, 42, 45, 64}

  49. hartnn
    • 2 years ago
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    \(\huge \color{red}{\checkmark}\)

  50. SephI
    • 2 years ago
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    Thanks XD

  51. hartnn
    • 2 years ago
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    Welcomes ^_^

  52. SephI
    • 2 years ago
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    How do you do the checkmark?

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