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frogs29

  • 3 years ago

Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale

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  1. frogs29
    • 3 years ago
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  2. frogs29
    • 3 years ago
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    @Opcode

  3. frogs29
    • 3 years ago
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    @hba

  4. frogs29
    • 3 years ago
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    @amistre64

  5. amistre64
    • 3 years ago
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    which trig function would you use with the information given?

  6. frogs29
    • 3 years ago
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    wouldnt you use cosine?

  7. amistre64
    • 3 years ago
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    start out by writing down the 3 basic trig functions for me ...

  8. frogs29
    • 3 years ago
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    well there are sine and cosine i know for sure

  9. amistre64
    • 3 years ago
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    good, and also tangent. how do we define them in terms of the sides of a triangle? using opposite, adjacent, and hypotenuse ...

  10. frogs29
    • 3 years ago
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    tangent and cotangent?

  11. frogs29
    • 3 years ago
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    in not sure to be honest

  12. amistre64
    • 3 years ago
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    then that is what you need to work on. sin = opp/hyp cos = adj/hyp tan = opp/adj given these 3 basic trig functions, which one uses the information given?

  13. amistre64
    • 3 years ago
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    you might wanna use words that you like :) i tend to use over, next.to, and slant becasue they sound less babbley

  14. frogs29
    • 3 years ago
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    So this triangle i would use tangent then?

  15. amistre64
    • 3 years ago
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    correct tan(a) = over/next.to , lets fill in whats given tan(15) = x/12 how do we move this about to get x all alone?

  16. frogs29
    • 3 years ago
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    i have a quetion first. where and how do you get 15?

  17. amistre64
    • 3 years ago
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    i have old eyes :) i read the 12 and 35 together and saw 15

  18. frogs29
    • 3 years ago
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    oh ok lol so it would be tan(35)=x/12?

  19. amistre64
    • 3 years ago
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    yes, then its just a little algebra to solve for x

  20. frogs29
    • 3 years ago
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    so then i would multiply 12 and 35 together?

  21. amistre64
    • 3 years ago
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    you are on the right track, but lets clarify that alittle 12 * tan(35) = x you need a table or calculator for the tan(35) part

  22. frogs29
    • 3 years ago
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    oh ok let me see

  23. frogs29
    • 3 years ago
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    so it would be 8.40249045851651735

  24. frogs29
    • 3 years ago
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    and rounding to the nearest tenth would be 8.4

  25. amistre64
    • 3 years ago
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    correct

  26. frogs29
    • 3 years ago
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    ok so that would be x then?

  27. amistre64
    • 3 years ago
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    lets see. 12*tan(35) = x 8.4 = x yep, im pretty sure that completes it :)

  28. frogs29
    • 3 years ago
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    ok thank you so much would you be able to help me with one more?

  29. amistre64
    • 3 years ago
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    prolly not, ive got a class starting soon

  30. frogs29
    • 3 years ago
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    oh ok well thank you for your help i appreciate it!

  31. amistre64
    • 3 years ago
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    good luck :)

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