Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    0
    ReputationRep:
    A river is 30 metres wide in a certain region and its depth,d metres, at a point x metres from one side is given by the formula d=1/60[(x(30-x)(30+x) to the power of 1/2].
    (a) use simpsons rule with 6 intervals to estimate the cross-sectional area of the river in this region,giving your answers to 3 significant figures.
    (b) given that in this region, the river is flowing at a uniform speed of 50 metres per minute, estimate the number of cubic metres of water passing per minute.
    i dont know where i keep going wrong.
    • Official TSR Representative
    Offline

    15
    ReputationRep:
    Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.


    Just quoting in Danny Dorito so she can move the thread if needed :wizard:
    Spoiler:
    Show
    (Original post by Danny Dorito)
    x
    Offline

    17
    ReputationRep:
    (Original post by faisa12345)
    A river is 30 metres wide in a certain region and its depth,d metres, at a point x metres from one side is given by the formula d=1/60[(x(30-x)(30+x) to the power of 1/2].
    (a) use simpsons rule with 6 intervals to estimate the cross-sectional area of the river in this region,giving your answers to 3 significant figures.
    (b) given that in this region, the river is flowing at a uniform speed of 50 metres per minute, estimate the number of cubic metres of water passing per minute.
    i dont know where i keep going wrong.
    Could you post your working?
 
 
 
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • Poll
    Did TEF Bronze Award affect your UCAS choices?
    Useful resources

    Make your revision easier

    Maths

    Maths Forum posting guidelines

    Not sure where to post? Read the updated guidelines here

    Equations

    How to use LaTex

    Writing equations the easy way

    Student revising

    Study habits of A* students

    Top tips from students who have already aced their exams

    Study Planner

    Create your own Study Planner

    Never miss a deadline again

    Polling station sign

    Thinking about a maths degree?

    Chat with other maths applicants

    Can you help? Study help unanswered threads

    Groups associated with this forum:

    View associated groups
  • See more of what you like on The Student Room

    You can personalise what you see on TSR. Tell us a little about yourself to get started.

  • The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

    Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

    Quick reply
    Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.