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anonymous

  • one year ago

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B and C, as shown below: A source of laser light is at point A on the ground between two parallel walls. The walls are perpendicular to the ground. AB is a ray of light which strikes the wall on the left at point B which is 60 meters above the ground. AC is a ray of light which strikes the wall on the right at point C which is 40 m above the ground. The ray AB makes an angle of 60 degrees with the ground. The ray AC makes an angle of 30 degrees with the ground.

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  1. anonymous
    • one year ago
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    What is the distance between the walls? 110.90 m 149.28 m 103.92 m 173.20 m

  2. anonymous
    • one year ago
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    @misssunshinexxoxo

  3. anonymous
    • one year ago
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    @Marcorie

  4. anonymous
    • one year ago
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    @Jasmiinnee_m

  5. anonymous
    • one year ago
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    is their a graph that goes along? just wondering

  6. misssunshinexxoxo
    • one year ago
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    Which do you believe it is?

  7. anonymous
    • one year ago
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    @Marcorie yes hold on i just accidentally closed the tab

  8. anonymous
    • one year ago
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  9. anonymous
    • one year ago
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    which one do you think it is?

  10. anonymous
    • one year ago
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    149.28

  11. anonymous
    • one year ago
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    40cot(30∘)+60cot(60∘)=?

  12. misssunshinexxoxo
    • one year ago
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    http://www.wolframalpha.com/input/?i=60%2F%E2%88%9A3+%2B+40%E2%88%9A3+%3D+ C is the best choice

  13. anonymous
    • one year ago
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    40cot(30∘)+60cot(60∘)=603√=103.923 i didnt want to give him the answer i wanted him to solve for it but yeah C

  14. anonymous
    • one year ago
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    I got 103.923

  15. anonymous
    • one year ago
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    Oh

  16. misssunshinexxoxo
    • one year ago
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    In today's age they use graphing calculators for common core standard. He still understands it

  17. anonymous
    • one year ago
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    You already gave me the answer

  18. misssunshinexxoxo
    • one year ago
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    I didn't just tell him the answer without explanation

  19. anonymous
    • one year ago
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    yeah true anyway if you need anyting else just contact us. :)

  20. anonymous
    • one year ago
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    Thanks :)

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