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Calcmathlete

Find the solution set of the inequality: |2x+5|+|4x+7|<30

  • one year ago
  • one year ago

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  1. Calcmathlete
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    Please show all work!

    • one year ago
  2. ReiKacanja
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    6x+12<30 6x<18 x<3

    • one year ago
  3. Calcmathlete
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    That's not an answer choice

    • one year ago
  4. Calcmathlete
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    Someone help!!!!!

    • one year ago
  5. pokemon23
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    aviation hs for the win ;D

    • one year ago
  6. ReiKacanja
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    lol, Wat, it is right. Answer is x<3. 100% sure

    • one year ago
  7. Calcmathlete
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    I checked the answer key. The answer is -7≤x≤3 -_-

    • one year ago
  8. ReiKacanja
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    then are u sure the question is |2x+5|+|4x+7|<30

    • one year ago
  9. Calcmathlete
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    Wait, no ≤. Just <

    • one year ago
  10. Calcmathlete
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    Yes

    • one year ago
  11. ReiKacanja
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    ohhh i see. if you graph it, you find that x intercepts are 3 and -7 therefore x is between -7 - 3

    • one year ago
  12. pokemon23
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    your a ninth grade right rei

    • one year ago
  13. Calcmathlete
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    Oh. I see. It splits into two inequalities because you can flip the sign and negate the second part.

    • one year ago
  14. ReiKacanja
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    yeah and @pokemon23 yes im a ninth grader, u?

    • one year ago
  15. pokemon23
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    same

    • one year ago
  16. ReiKacanja
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    what school u go to?

    • one year ago
  17. pokemon23
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    same hs

    • one year ago
  18. ReiKacanja
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    :D message me

    • one year ago
  19. pokemon23
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    i join the aviation lol

    • one year ago
  20. pokemon23
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    101

    • one year ago
  21. Calcmathlete
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    Hey Rei, are you good at logarithms?

    • one year ago
  22. ReiKacanja
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    no, my nine year education does not cover logarithms

    • one year ago
  23. Calcmathlete
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    Alright. Thanks for the help. :)

    • one year ago
  24. ReiKacanja
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    No problem

    • one year ago
  25. Taufique
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    @Calcmathlete

    • one year ago
  26. Calcmathlete
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    Thank you

    • one year ago
  27. Taufique
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    welcome...

    • one year ago
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