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_josalynn

  • 2 years ago

Solve 2^x + 3 = 7 x ≈ –5.19 x ≈ 0.94 x ≈ –0.19 x ≈ 2.81 Solve 5^x + 5 = 9^x x ≈ –3.63 x ≈ –0.28 x ≈ 0.07 x ≈ 13.69 Solve 3^x – 4 = 7^x + 9 x ≈ –25.86 x ≈ –2.59 x ≈ –0.39 x ≈ –0.04 Solve 11.32^x – 1 = 15.7 x ≈ 1.12 x ≈ 0.57 x ≈ 0.94 x ≈ 1.07

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  1. precal
    • 2 years ago
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    I can help you do one of these, they are all done in the same fashion

  2. precal
    • 2 years ago
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    |dw:1359308368840:dw|

  3. _josalynn
    • 2 years ago
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    these are logarithmic functions with unequal bases..

  4. precal
    • 2 years ago
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    seems like your choices are incorrect or you posted the wrong problem

  5. precal
    • 2 years ago
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    |dw:1359308477686:dw|is this your problem?

  6. _josalynn
    • 2 years ago
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    yes.

  7. precal
    • 2 years ago
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    then your post is incorrect

  8. precal
    • 2 years ago
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    |dw:1359308523605:dw|

  9. _josalynn
    • 2 years ago
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    i put the ^ representing it was an exponent.

  10. precal
    • 2 years ago
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    |dw:1359308551226:dw|

  11. precal
    • 2 years ago
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    |dw:1359308581180:dw|

  12. precal
    • 2 years ago
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    |dw:1359308604405:dw|

  13. precal
    • 2 years ago
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    big difference, btw I am done with the problem just put it in your calculator so you can choose the correct solution

  14. precal
    • 2 years ago
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    |dw:1359308663511:dw|

  15. precal
    • 2 years ago
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    the decimal answer is what is known as an approximate solution

  16. precal
    • 2 years ago
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    the others are done in the same format

  17. _josalynn
    • 2 years ago
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    so it would be -0.19?

  18. precal
    • 2 years ago
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    -.1926450779

  19. _josalynn
    • 2 years ago
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    okay, thanks so much.

  20. precal
    • 2 years ago
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    yw

  21. _josalynn
    • 2 years ago
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    for the second problem 5^x+5=9^x i got a little confused, do you think you can help?

  22. _josalynn
    • 2 years ago
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    i did every step you did but the extra x threw me of a little bit.

  23. precal
    • 2 years ago
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    |dw:1359309478846:dw|

  24. precal
    • 2 years ago
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    which one is it?

  25. _josalynn
    • 2 years ago
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    the second one.

  26. precal
    • 2 years ago
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    |dw:1359309573523:dw|

  27. _josalynn
    • 2 years ago
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    ooh!! i forgot to distribute!

  28. precal
    • 2 years ago
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    |dw:1359309640158:dw|

  29. _josalynn
    • 2 years ago
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    when i did the math, none of the answer choices were listed. i got -5.757579742

  30. precal
    • 2 years ago
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    you need to put ( ) in the correct place in your calculator

  31. precal
    • 2 years ago
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    |dw:1359310047290:dw|

  32. precal
    • 2 years ago
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    if you are using a TI graphing calculator then you will need more ( )|dw:1359310083503:dw|

  33. _josalynn
    • 2 years ago
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    got it! thanks alot. im going to try to do the next few problems by myself.

  34. precal
    • 2 years ago
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    yw

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