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anonymous

  • 5 years ago

Binomial Radical Expressions! Question is in the attachment file!

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  1. anonymous
    • 5 years ago
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  2. anonymous
    • 5 years ago
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    A.

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  3. anonymous
    • 5 years ago
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    B.

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  4. anonymous
    • 5 years ago
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    C.

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  5. anonymous
    • 5 years ago
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    D.

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  6. dumbcow
    • 5 years ago
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    To rationalize the denominator multiply top and bottom by conjugate: \[\frac{7}{1-\sqrt{3}}*\frac{1+\sqrt{3}}{1+\sqrt{3}}\]

  7. dumbcow
    • 5 years ago
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    1 question at a time please

  8. anonymous
    • 5 years ago
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    Those weren't questions attachements paint 1 through 5 are the answer choices!

  9. anonymous
    • 5 years ago
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    There labeled a b c and d.

  10. dumbcow
    • 5 years ago
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    oh i see :)

  11. dumbcow
    • 5 years ago
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    hmm i don't like any of the answer choices

  12. anonymous
    • 5 years ago
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    Which one is it thenn?

  13. dumbcow
    • 5 years ago
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    work it out, i showed you what you need to do

  14. anonymous
    • 5 years ago
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    I really don't know how to do this.

  15. anonymous
    • 5 years ago
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    Can you please just tell me which answer it is please! That's my last questionn!

  16. dumbcow
    • 5 years ago
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    just distribute on top and FOIL on bottom --> answer = (7 + 7sqrt3)/-2

  17. anonymous
    • 5 years ago
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    Which letter choice is that cause it doesn't seem to match anyy.

  18. dumbcow
    • 5 years ago
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    thats what i said before

  19. anonymous
    • 5 years ago
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    Ok well if you had to choose out of the choices which do you think would be right?

  20. anonymous
    • 5 years ago
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    dumbcow...can you help me on that same problem when ur done

  21. dumbcow
    • 5 years ago
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    none did you know that A and B are exactly the same

  22. anonymous
    • 5 years ago
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    Ohhh okayy I'll post you the last choice that's my faultt

  23. anonymous
    • 5 years ago
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  24. anonymous
    • 5 years ago
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    Alright thats the choicee.

  25. anonymous
    • 5 years ago
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    So is the newest choice the answer?

  26. dumbcow
    • 5 years ago
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    it seems to be the closest but it is not correct either

  27. dumbcow
    • 5 years ago
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    did i get the original question correct ??

  28. anonymous
    • 5 years ago
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    Alright thanks for the help!

  29. dumbcow
    • 5 years ago
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    you know you can use a calculator to verify these as well

  30. dumbcow
    • 5 years ago
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    7/(1-sqrt3) = -9.562 so which answer equals -9.562

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