Results 1 to 3 of 3

Math Help - i am lost on this word problem

  1. #1
    Member
    Joined
    Jan 2009
    From
    USA
    Posts
    123

    i am lost on this word problem

    I don't even know what to do. It was in the section with law of cosines/sines. does this problem apply some how & I just don't know?

    A ship is sailing due north. At a certain point the bearing of a lighthouse is N36.6degrees E and the distance is 11.5. After a while, the captain notices that the bearing of the lighthouse is now S46.5degrees E. How far did the ship travel between the two observations of the lighthouse.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    skeeter's Avatar
    Joined
    Jun 2008
    From
    North Texas
    Posts
    11,621
    Thanks
    426
    Quote Originally Posted by lsnyder View Post
    I don't even know what to do. It was in the section with law of cosines/sines. does this problem apply some how & I just don't know?

    A ship is sailing due north. At a certain point the bearing of a lighthouse is N36.6degrees E and the distance is 11.5. After a while, the captain notices that the bearing of the lighthouse is now S46.5degrees E. How far did the ship travel between the two observations of the lighthouse.
    did you make a sketch?

    law of sines ...

    \frac{x}{\sin(96.9)} = \frac{11.5}{\sin(46.5)}
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Member
    Joined
    Jan 2009
    From
    USA
    Posts
    123
    o wow. i mixed up the sines. thank you for helping me realize what i did wrong.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Equation problem...Lost on it..
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: February 1st 2010, 03:41 AM
  2. Matrix Problem - Lost
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: August 30th 2009, 06:16 AM
  3. I'm so lost and need help with this problem!
    Posted in the Math Topics Forum
    Replies: 13
    Last Post: June 28th 2008, 06:16 AM
  4. Lost about a probability problem
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: April 22nd 2008, 06:08 AM
  5. Word Problems? I'm Lost
    Posted in the Math Topics Forum
    Replies: 4
    Last Post: December 3rd 2007, 10:56 AM

Search Tags


/mathhelpforum @mathhelpforum