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anonymous

  • one year ago

The point (3, -4) is on the terminal side of an angle . What is cos theta ?

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  1. anonymous
    • one year ago
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    *Is on the terminal side of of angle theta

  2. anonymous
    • one year ago
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    the answers choices: -3/5 3/5 -3/4 3/4 3

  3. anonymous
    • one year ago
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    This is the right triangle. \[\cos \theta=\frac{ adjacent }{ hypotenuse }\] The adjacent side is 3. Find the hypotenuse |dw:1436185096039:dw|

  4. anonymous
    • one year ago
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    how? @peachpi

  5. anonymous
    • one year ago
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    is it 25?

  6. anonymous
    • one year ago
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    the pythagorean theorem a² + b²=c²

  7. anonymous
    • one year ago
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    you have to take the square root of 25

  8. anonymous
    • one year ago
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    so it is 5

  9. anonymous
    • one year ago
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    yes

  10. anonymous
    • one year ago
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    so would the answer to my question be 3/5?

  11. anonymous
    • one year ago
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    yes

  12. anonymous
    • one year ago
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    ok, thank you!

  13. anonymous
    • one year ago
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    you're welcome

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spraguer (Moderator)
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