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anonymous

  • one year ago

A right triangle is shown. A right triangle with hypotenuse length of 15, base angle of 22 degrees and altitude of x. Which is closest to the value of x ?

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  1. anonymous
    • one year ago
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    the 15 is on the long side and the 22 is where you put the x

  2. anonymous
    • one year ago
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    i dont know how to do that

  3. Vocaloid
    • one year ago
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    OH WHOOPS HOLD ON, let me draw the diagram again

  4. anonymous
    • one year ago
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    ok :)

  5. Vocaloid
    • one year ago
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    |dw:1433103357038:dw|

  6. anonymous
    • one year ago
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    the 22 is where you put the x

  7. Vocaloid
    • one year ago
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    nope, "base angle" means the angle on the bottom

  8. Vocaloid
    • one year ago
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    "altitude" is the height of the triangle

  9. anonymous
    • one year ago
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    oh

  10. Vocaloid
    • one year ago
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    anyway, sin(22) = opposite/hypotenuse = x/15 solve for x

  11. anonymous
    • one year ago
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    f 13.9 g 9.0 h 5.6 j 6.1 these are the awncer choices

  12. Vocaloid
    • one year ago
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    alright, we know that sin(22) = x/15, so what is x?

  13. anonymous
    • one year ago
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    um how do i do that ?

  14. Vocaloid
    • one year ago
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    hint: a = b/c b = c*a

  15. anonymous
    • one year ago
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    so do i use a calculator

  16. Vocaloid
    • one year ago
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    now look at what I wrote before: sin(22) = x/15

  17. Vocaloid
    • one year ago
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    yes

  18. anonymous
    • one year ago
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    what do i put into the calculator

  19. Vocaloid
    • one year ago
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    I'm trying to help you figure it out on your own let's try an easier problem: 2 = x/4, what is x?

  20. anonymous
    • one year ago
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    idk i never learned sin and that stuff because i was new to the school and they already tought that

  21. Vocaloid
    • one year ago
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    let's ignore the sin stuff for now, just solve this problem: 2 = x/4 if x divided by 4 is 2, then what is x?

  22. anonymous
    • one year ago
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    2

  23. Vocaloid
    • one year ago
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    no, please try again

  24. Vocaloid
    • one year ago
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    what number gives you 2 when you divide it by 4?

  25. anonymous
    • one year ago
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    4

  26. Vocaloid
    • one year ago
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    what is 8 divided by 4?

  27. anonymous
    • one year ago
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    2

  28. Vocaloid
    • one year ago
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    great! so, what number gives you 2 when you divide it by 4?

  29. anonymous
    • one year ago
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    8

  30. Vocaloid
    • one year ago
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    excellent! so, if 2 = x/4, then x = 8, because 8 divided by 4 is 2

  31. Vocaloid
    • one year ago
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    in order to find x, we multiplied 2*4

  32. Vocaloid
    • one year ago
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    so, back to the sin stuff if sin(22) = x/15, we can find x by multiplying sin(22) and 15 so what is x?

  33. anonymous
    • one year ago
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    oh

  34. anonymous
    • one year ago
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    so would i do something like that to get my awncer to the first question

  35. Vocaloid
    • one year ago
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    yup! so, if sin(22) = x/15, what is x?

  36. Vocaloid
    • one year ago
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    what two numbers do you need to multiply to get x?

  37. anonymous
    • one year ago
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    15 and 22 ?

  38. Vocaloid
    • one year ago
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    not quite what is on the left side of the equation?

  39. anonymous
    • one year ago
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    22

  40. Vocaloid
    • one year ago
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    no, the whole thing

  41. anonymous
    • one year ago
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    sin(22)

  42. Vocaloid
    • one year ago
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    great! so, what do you multiply to get x?

  43. anonymous
    • one year ago
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    22

  44. Vocaloid
    • one year ago
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    no, please think again

  45. anonymous
    • one year ago
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    sin(22)

  46. Vocaloid
    • one year ago
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    yes! so, what do you multiply to get x?

  47. anonymous
    • one year ago
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    sin(22)

  48. Vocaloid
    • one year ago
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    you need to multiply TWO things, what's the other number?

  49. Vocaloid
    • one year ago
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    sin(22), and....?

  50. anonymous
    • one year ago
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    15

  51. Vocaloid
    • one year ago
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    YES!, sin(22) and 15!

  52. Vocaloid
    • one year ago
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    x = sin(22) times 15

  53. anonymous
    • one year ago
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    and that gives me 5.6

  54. Vocaloid
    • one year ago
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    excellent work, you're done

  55. anonymous
    • one year ago
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    thank you so much !!!!!

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