Results 1 to 7 of 7
Like Tree1Thanks
  • 1 Post By emakarov

Math Help - True or False

  1. #1
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2

    True or False

    i have here ten true or false problems and answers:
    1. false because it is 16
    2. true because sq root of 1 - 1 is 0... ( not too sure)
    3. true because it is 1 after substituting 2 in the place of x
    4. false because it is 81. ( not too sure)
    5. false because the line should be 2x + 3y - 13 = 0
    6. true does not exist
    7. false because the interval should [0,1) and it is discontinuous ( not too sure)
    8. false because it is indeterminate
    9. false because it does exist to 2/3 ...
    10. false because h(x) does not exist.

    Guys hope im doing right here.... pls check my work. because i cannot tell these are sure answers.

    Thanks
    Attached Thumbnails Attached Thumbnails True or False-untitled.jpg  
    Last edited by rcs; August 3rd 2012 at 08:41 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor ebaines's Avatar
    Joined
    Jun 2008
    From
    Illinois
    Posts
    1,065
    Thanks
    296

    Re: True or False

    I think you have them right, except for (1) - the answer is correct (false) but the limit is not 16.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2

    Re: True or False

    what is the answer in the number 1 sir?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,621
    Thanks
    426

    Re: True or False

    \lim_{x \to -2} \frac{x^4-16}{x+2} =

    \lim_{x \to -2} \frac{(x+2)(x-2)(x^2+4)}{x+2} =

    \lim_{x \to -2} (x-2)(x^2+4) = ?
    Follow Math Help Forum on Facebook and Google+

  5. #5
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2

    Re: True or False

    - 16 .. thanks
    Follow Math Help Forum on Facebook and Google+

  6. #6
    MHF Contributor
    Joined
    Oct 2009
    Posts
    5,527
    Thanks
    773

    Re: True or False

    Quote Originally Posted by rcs View Post
    - 16 .. thanks
    Think again.
    Thanks from skeeter
    Follow Math Help Forum on Facebook and Google+

  7. #7
    rcs
    rcs is offline
    Senior Member rcs's Avatar
    Joined
    Jul 2010
    From
    iligan city. Philippines
    Posts
    455
    Thanks
    2

    Re: True or False

    (-2 - 2) (-2^2 + 4)
    ( -4 ) ( 4 + 4)
    (-4) (8) = - 32 hmmm i always get wrong ... if i dont have to recalculate it over and over

    but it is ok... thank you guys for giving me hits and if not solve them entirely the problems
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: July 19th 2012, 04:20 PM
  2. Replies: 7
    Last Post: October 5th 2011, 12:45 PM
  3. Replies: 1
    Last Post: October 4th 2011, 02:19 AM
  4. how come false AND false is true?
    Posted in the Discrete Math Forum
    Replies: 5
    Last Post: September 24th 2010, 07:41 AM
  5. True or False. Prove if true show counter example if false.
    Posted in the Differential Geometry Forum
    Replies: 0
    Last Post: March 2nd 2010, 10:54 AM

Search Tags


/mathhelpforum @mathhelpforum