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dylanm Group Title

Can someone explain to me how it is possible to determine an answer for this question? http://i.imgur.com/ahpPs.jpg The waterslide one, I've had a go at it but there simply does not seem to be enough information (equations etc) to get answers. Any ideas?

  • one year ago
  • one year ago

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  1. jasonxx Group Title
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    are you talking about 16?

    • one year ago
  2. dylanm Group Title
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    The one underneath, Analysis Question 1.

    • one year ago
  3. jasonxx Group Title
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    use tan theta= h1/ 5

    • one year ago
  4. jasonxx Group Title
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    and \[h1= \sqrt {l^2-25}\]

    • one year ago
  5. dylanm Group Title
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    In order to use trig, you need an angle, but there is no angle listed in this question.

    • one year ago
  6. jasonxx Group Title
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    coordinate of A is (16,0)

    • one year ago
  7. dylanm Group Title
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    The answer section in the back of the book states it is (15,0)

    • one year ago
  8. jasonxx Group Title
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    hmm...wait a sec

    • one year ago
  9. jasonxx Group Title
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    how come this cubic equation has got two roots only??

    • one year ago
  10. jasonxx Group Title
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    let's say coordinate of A is (x1,0)...your cubic function will be (x-0)(x-8)(x-x1)

    • one year ago
  11. jasonxx Group Title
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    but at x=0 value of cubic function is h1

    • one year ago
  12. jasonxx Group Title
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    so the function is (x-h1)(x-5)(x-x1)

    • one year ago
  13. jasonxx Group Title
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    now i am realising ...this question is really a good one :)

    • one year ago
  14. jasonxx Group Title
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    @lgbasallote where are you...come here ..have some fun

    • one year ago
  15. lgbasallote Group Title
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    someone called?

    • one year ago
  16. jasonxx Group Title
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    yea me....check out the question and help to figure this out ...please

    • one year ago
  17. lgbasallote Group Title
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    sorry. i hate math...i have no idea

    • one year ago
  18. jasonxx Group Title
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    well i had been seeing that...you have solved mathematics for most of the time ...but it's fine....if you don't wanna get in to this

    • one year ago
  19. lgbasallote Group Title
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    i seriously do not have any idea. i'm just a primary school student.

    • one year ago
  20. jasonxx Group Title
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    cool...

    • one year ago
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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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