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highschoolmom2010 Group Title

you see a rock climber on a cliff at a 32 degree angle. your eve level is 6 feet from the ground and you stand 1000 feet from the base of the cliff. what is the approx. height of the rock climber from the ground?

  • one year ago
  • one year ago

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  1. highschoolmom2010 Group Title
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    |dw:1376760311357:dw|

    • one year ago
  2. ankit042 Group Title
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    You know how to write sin for a triangle?

    • one year ago
  3. highschoolmom2010 Group Title
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    yes

    • one year ago
  4. highschoolmom2010 Group Title
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    \[\sin \frac{ opp }{ hyp }\]

    • one year ago
  5. ankit042 Group Title
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    Yes try using this here we know sin30=1/2

    • one year ago
  6. highschoolmom2010 Group Title
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    where did you get that from

    • one year ago
  7. ankit042 Group Title
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    sin30 is a standard angle...It is good to know value of sin 0,30,45,60,90 otherwise you can always use calculator :P

    • one year ago
  8. highschoolmom2010 Group Title
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    oh yea ok

    • one year ago
  9. ankit042 Group Title
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    Now can you proceed from here?

    • one year ago
  10. highschoolmom2010 Group Title
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    eh no not really

    • one year ago
  11. ankit042 Group Title
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    where are you stuck?

    • one year ago
  12. highschoolmom2010 Group Title
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    basically the begining this confused me bc i was given the adjacent side to the angle

    • one year ago
  13. ankit042 Group Title
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    Sorry I couldn't understand you...can you explain more

    • one year ago
  14. timo86m Group Title
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    you use cos not sin if you are given adjecent. But better yet this problem requires tan :P

    • one year ago
  15. timo86m Group Title
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    tan because you are given the adjecent. And wanna know the oppossite side.

    • one year ago
  16. timo86m Group Title
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    tan(30)=opp/adj=x/1000

    • one year ago
  17. highschoolmom2010 Group Title
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    so i need to use tan

    • one year ago
  18. timo86m Group Title
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    Yup :D it is the simplest trig ID that has both opp and adj in it.

    • one year ago
  19. timo86m Group Title
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    tan(30)=opp/adj=x/1000 tan(30)=x/1000 solve for x can you do that?

    • one year ago
  20. highschoolmom2010 Group Title
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    \[1000*\tan 30=\frac{ x }{ 1000 }*1000\] \[1000( \tan 30)=x\] but the angle is 32 degrees

    • one year ago
  21. timo86m Group Title
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    1000*tan 32 =x is right so far :D what you do now is evaluate tan 32 in degree mode SOrry at typo

    • one year ago
  22. timo86m Group Title
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    i must have look at that other guy who say sin 30 lol.

    • one year ago
  23. highschoolmom2010 Group Title
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    1000 tan (32) gave me a crazy answer

    • one year ago
  24. timo86m Group Title
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    1000*(tan 32) =x ok so we got this far all we do is use our calculator making sure we in degree mode not radian mode tan32=0.62486935190932750978051082794943665831087020284270496 so we jsut plug that in 1000*.6248=624.8 ft sounds believeable. ooh plus 6 feet for the guys height at eye level 624.8+6

    • one year ago
  25. highschoolmom2010 Group Title
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    so rock climber is approx. 630.8' from the ground

    • one year ago
  26. timo86m Group Title
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    if that is one of your answer choices :D use the one that is closest to our answer. oh and i would go with that lol.

    • one year ago
  27. ankit042 Group Title
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    Ohh sorry I made a mistake...was multitasking :(

    • one year ago
  28. highschoolmom2010 Group Title
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    i have no answer choices

    • one year ago
  29. highschoolmom2010 Group Title
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    @timo86m

    • one year ago
  30. timo86m Group Title
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    go with 630.8 then

    • one year ago
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