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katlin95 Group Title

f(x)=sqrt 2x-5 find f (27)

  • one year ago
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  1. AravindG Group Title
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    substitute x with 27 in f(x) .

    • one year ago
  2. katlin95 Group Title
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    27

    • one year ago
  3. AravindG Group Title
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    try again?

    • one year ago
  4. some_someone Group Title
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    f(27)=sqr root (2(27)-5) Multiply 2 by the 27 inside the parentheses. f(27)=sqr root (2*27-5) Multiply 2 by 27 to get 54. f(27)=sqr root (54-5) Subtract 5 from 54 to get 49. f(27)=sqr root (49) Pull all perfect square roots out from under the radical. In this case, remove the 7 because it is a perfect square. f(27)=7

    • one year ago
  5. katlin95 Group Title
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    @AravindG is 7 correct?

    • one year ago
  6. AravindG Group Title
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    yep :)

    • one year ago
  7. katlin95 Group Title
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    yay!

    • one year ago
  8. AravindG Group Title
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    @some_someone please do not give direct worked out answers like that .It is against Openstudy COC .Refer http://openstudy.com/code-of-conduct .Instead help the asker get to the solution ,making them participate in answering process.Thank you

    • one year ago
  9. some_someone Group Title
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    Ok thank you @AravindG I will follow that now :)

    • one year ago
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