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ksaimouli Group Title

a woman 5 feet tall is walking away from a streetlight hung 20 feet from the ground at a rate of 6ft how fast the shadow lengthing

  • one year ago
  • one year ago

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  1. ksaimouli Group Title
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    |dw:1353865196344:dw|

    • one year ago
  2. ksaimouli Group Title
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    beside 5 is 20

    • one year ago
  3. ksaimouli Group Title
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    i just want

    • one year ago
  4. ksaimouli Group Title
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    similar triangle

    • one year ago
  5. ksaimouli Group Title
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    can i use |dw:1353865365236:dw|

    • one year ago
  6. ksaimouli Group Title
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    @hartnn

    • one year ago
  7. asnaseer Group Title
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    you are using exactly the right approach. find x in terms of y and then differentiate with respect to time to get your answer.

    • one year ago
  8. ksaimouli Group Title
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    i know i got 18 but book used another one |dw:1353865556968:dw|

    • one year ago
  9. ksaimouli Group Title
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    which is right way

    • one year ago
  10. ksaimouli Group Title
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    they got 2ft/sec

    • one year ago
  11. asnaseer Group Title
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    I think you have an error in your calculation. If I use the same ratio as you showed initially then I get an answer of 2 ft/s

    • one year ago
  12. ksaimouli Group Title
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    hmmm

    • one year ago
  13. asnaseer Group Title
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    maybe if you listed your steps then I may be able to help you spot where you may have made a mistake

    • one year ago
  14. ksaimouli Group Title
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    |dw:1353865761171:dw|

    • one year ago
  15. ksaimouli Group Title
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    |dw:1353865816040:dw|

    • one year ago
  16. ksaimouli Group Title
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    dx/dt=6

    • one year ago
  17. asnaseer Group Title
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    sorry I meant that you have been given dy/dt = 6

    • one year ago
  18. asnaseer Group Title
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    x represents the shadow length

    • one year ago
  19. ksaimouli Group Title
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    so the shadow falls in front of her because the light is backwards?

    • one year ago
  20. asnaseer Group Title
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    yes - but I would say the light is behind her rather than "backwards" :)

    • one year ago
  21. ksaimouli Group Title
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    thx becasue of silly mistake whole answer is wrong thx for correcting me

    • one year ago
  22. asnaseer Group Title
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    yw :)

    • one year ago
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