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anonymous

  • one year ago

3.Substitute your birthday into the equation Square root of the quantity x minus y + m = d, where y is the last two digits of your birth year, m is the month, and d is the day. If you were born on 7/10/1856 like Nikola Tesla, your equation would be Square root of the quantity x minus 56 + 7 = 10. Solve for x and identify if it is an extraneous solution. My birthday is 06/06/1998 who ever answers this I will give a medal to.

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  1. chrisdbest
    • one year ago
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    Dang my birthday is May 9th 1997! This seems a little tricky

  2. anonymous
    • one year ago
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    I know I tried asking my teacher but he wouldn't help me .-.

  3. Astrophysics
    • one year ago
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    What's stopping you from doing what the example showed you?

  4. chrisdbest
    • one year ago
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    So I got \[\sqrt{x-98} +6=6\]

  5. chrisdbest
    • one year ago
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    But I don't know if the question is asking for this: \[\sqrt{x-98} +6=6\] or this: \[\sqrt{x-98+6}=6\]

  6. anonymous
    • one year ago
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    I got sqrt x-98 +6=6 I just don't understand how to solve the equation

  7. Astrophysics
    • one year ago
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    Ok, but answer what chris has asked you, please specify your equation.

  8. Astrophysics
    • one year ago
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    Is it \[\sqrt{x-98}+6=6 ~~~~ \text{or}~~~\sqrt{x-98+6}=6\]...

  9. anonymous
    • one year ago
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    \[\sqrt{x-98} +6=6\] is what I got

  10. Astrophysics
    • one year ago
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    Ok good, so now you want to look for the extraneous solution

  11. Astrophysics
    • one year ago
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    So we want to solve for x right?

  12. anonymous
    • one year ago
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    Yes wouldn't we square the x-98 to get rid of the square root?

  13. Astrophysics
    • one year ago
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    Right! See you know this stuff :)

  14. chrisdbest
    • one year ago
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    And what's next?

  15. Astrophysics
    • one year ago
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    First lets simplify it a bit, move the 6 on the right

  16. Astrophysics
    • one year ago
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    Then we'll take the square root

  17. anonymous
    • one year ago
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    So we take the square root of the 6 right?

  18. chrisdbest
    • one year ago
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    Yes, so your left with x-98 + 6 = 6

  19. Astrophysics
    • one year ago
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    Well I meant, lets make it easier on ourselves by doing this \[\sqrt{x-98}-6=6 \implies \sqrt{x-98} = 12\]

  20. chrisdbest
    • one year ago
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    You know what to do from here?

  21. anonymous
    • one year ago
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    Yes thank you guys so much for the help!

  22. Astrophysics
    • one year ago
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    Np, everything make sense now?

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