Math question

Discussion in 'General Discussion' started by Hiraga, Oct 5, 2009.

Thread Status:
Not open for further replies.
  1. Hiraga

    Hiraga BILL BILL BILL BILL BILL

    Joined:
    May 16, 2008
    Posts:
    4,900
    News Credits:
    2
    Trophy Points:
    151
    Likes:
    +5
    Sorry about this if it isn't allowed. But I'm on my chapter closure for Geometry and I can't figure out this one last problem. It would mean a lot if someone could help me out (I even called my study group. But it's filled with ******ed jocks and dumb blondes who either said bullshit or just laughed and hung up.)
    I would also like an explanation if possible so I get this down for the test on thursday. Math is definetly not my strongest subject, but I'm trying.

    -2+11x *-4+3x=?
     
  2. SpoonsTheSecond

    SpoonsTheSecond Banned

    Joined:
    Oct 3, 2009
    Posts:
    88
    Trophy Points:
    46
    Likes:
    +0
    42. That is the answer to Everything.






    Cheater
     
  3. Vexza

    Vexza Nerdicon

    Joined:
    Feb 21, 2009
    Posts:
    2,732
    Trophy Points:
    151
    Likes:
    +0
    * meaning multiplication?

    Or am I ******ed?
     
  4. KnightSaberAmi

    KnightSaberAmi Nyan Nyan

    Joined:
    Dec 25, 2004
    Posts:
    2,894
    Trophy Points:
    201
    Likes:
    +0
    okay hang on cause i have to remember this stuff, could you take a pic of the page and upload?
     
  5. Hiraga

    Hiraga BILL BILL BILL BILL BILL

    Joined:
    May 16, 2008
    Posts:
    4,900
    News Credits:
    2
    Trophy Points:
    151
    Likes:
    +5
    Not a cheater. Just someone asking for help. I'm obviously asking for an explanation so I know how to do this kind of problem from now on.
    If I was cheating I would've just called up one of my friends and asked them what they got. But I'm a bit more respectable then that.

    Vexza- yes.

    I'll try and draw the picture on MS paint since my scanner is at my grandmothers.
     
  6. Aernaroth

    Aernaroth <b><font color=blue>I voted for Super_Megatron and Veteran

    Joined:
    Mar 27, 2004
    Posts:
    24,391
    News Credits:
    2
    Trophy Points:
    367
    Likes:
    +1,359
    The equation is incomplete. Without knowing any of the boundary conditions, x could equal anything.

    If we're able to set the equation equal to 0, then we're able to find out that X must equal 2/41 . But with that question mark there, X can equal anything, and that question mark will simply be the result.

    Are you sure you wrote the question right?

    -2 + (-4*11x) + 3x = ?
     
  7. ILoveDinobot

    ILoveDinobot Not today Galvatron!

    Joined:
    Jan 19, 2006
    Posts:
    15,808
    News Credits:
    9
    Trophy Points:
    337
    Location:
    Long Island
    Likes:
    +475
    Ebay:
    Twitter:
    Oh wow, this is why I am doing my masters in a health science.
     
  8. Hiraga

    Hiraga BILL BILL BILL BILL BILL

    Joined:
    May 16, 2008
    Posts:
    4,900
    News Credits:
    2
    Trophy Points:
    151
    Likes:
    +5
    How easy WAS math when you were in high school? Because even my parents were totally clueless when they saw this.

    [​IMG]

    There was a similar problem which I totally guessed on. Maybe someone here could tell me if I got it right.

    11*3x=33x
     
  9. Vexza

    Vexza Nerdicon

    Joined:
    Feb 21, 2009
    Posts:
    2,732
    Trophy Points:
    151
    Likes:
    +0
    Oh, squares.

    ...

    Why is this near-essential skill so tedious?
     
  10. Vexza

    Vexza Nerdicon

    Joined:
    Feb 21, 2009
    Posts:
    2,732
    Trophy Points:
    151
    Likes:
    +0
    11*3x is definitely 33x.
     
  11. Aernaroth

    Aernaroth <b><font color=blue>I voted for Super_Megatron and Veteran

    Joined:
    Mar 27, 2004
    Posts:
    24,391
    News Credits:
    2
    Trophy Points:
    367
    Likes:
    +1,359
    Oh, ok. So are we to assume this is a square? In which case,

    3x-4 = 11x -2 as l=w

    so a little algebra, and x= -2/8 = -1/4

    meaning area is l*w = (-3/4-4) * (-11/4-2) = -4.75^2 = 22.5625

    Its a little strange, since you end up with negative side length, which is impossible in the real world.
     
  12. Hiraga

    Hiraga BILL BILL BILL BILL BILL

    Joined:
    May 16, 2008
    Posts:
    4,900
    News Credits:
    2
    Trophy Points:
    151
    Likes:
    +5
    Isn't it l*w?

    What I really need to know is if you add x + a negative or postive, what will that come out as?
    Like would 2x+4= 6x, or 6?

    I'm not saying that's wrong. It just seems a little more complicated then it should be, since all the other problems were much more simple and easy to figure out.
     
  13. grimlock1972

    grimlock1972 "No Mas" My Wallet

    Joined:
    Apr 20, 2009
    Posts:
    19,043
    News Credits:
    3
    Trophy Points:
    297
    Likes:
    +810
    ack! my arch nemesis! *runs back to general math*
     
  14. Motor_Master

    Motor_Master Lets the balls touch

    Joined:
    Jul 30, 2002
    Posts:
    11,862
    News Credits:
    7
    Trophy Points:
    372
    Location:
    New Hampshire
    Likes:
    +213
    What he's saying is that if you assume the length is equal to the width, you can determine the value of x. Once you know the value of x you can then determine the area of the square (length * width)
     
  15. Red Alert

    Red Alert Security

    Joined:
    Feb 5, 2008
    Posts:
    8,559
    News Credits:
    26
    Trophy Points:
    197
    Likes:
    +30
    the answer is 7
     
  16. Hiraga

    Hiraga BILL BILL BILL BILL BILL

    Joined:
    May 16, 2008
    Posts:
    4,900
    News Credits:
    2
    Trophy Points:
    151
    Likes:
    +5
    Oh. Well that makes sense then. >.< *feels like an idiot*

    Thank you both very much. Somone could close this topic now. Once again thanks.
     
  17. Motor_Master

    Motor_Master Lets the balls touch

    Joined:
    Jul 30, 2002
    Posts:
    11,862
    News Credits:
    7
    Trophy Points:
    372
    Location:
    New Hampshire
    Likes:
    +213
    Don't feel bad about it, IIRC Aernaroth and I have both taken a lot of advanced math courses.
     
  18. Dran0n

    Dran0n Junk male

    Joined:
    Dec 13, 2007
    Posts:
    13,314
    News Credits:
    1
    Trophy Points:
    217
    Location:
    Cygnus X-1 (ya bish)
    Likes:
    +16
    I couldn't help you. My F in math should tell you math isn't my strong point.
     
  19. FreshDebesh

    FreshDebesh <b><font color=brickred>oye chak de phatte!</font> Veteran

    Joined:
    Jul 1, 2002
    Posts:
    8,862
    Trophy Points:
    237
    Likes:
    +3
    This is why I went to med school. I suck at math. Hope this helped the original poster!
     
Thread Status:
Not open for further replies.

Share This Page