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iheartfood

  • 3 years ago

Solve the equation attached for x :)

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  1. iheartfood
    • 3 years ago
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  2. iheartfood
    • 3 years ago
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    A. x = 8/5 B. x = -8/5 C. x = 0, 8/5 D. There are no solutions.

  3. jim_thompson5910
    • 3 years ago
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    test each answer choice so plug in x = 8/5, what do you get?

  4. iheartfood
    • 3 years ago
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    how do i plug it in?? in format via calc?

  5. jim_thompson5910
    • 3 years ago
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    replace x with 8/5

  6. jim_thompson5910
    • 3 years ago
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    and use a calculator

  7. iheartfood
    • 3 years ago
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    okay so for x=8/5 i got .76339... is that right?

  8. jim_thompson5910
    • 3 years ago
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    on the left side?

  9. iheartfood
    • 3 years ago
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    noo i did this.. log(3)8/5... idk i feel like thats wrong tho :(

  10. iheartfood
    • 3 years ago
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    thats wrong isn't it??!! :O

  11. jim_thompson5910
    • 3 years ago
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    yeah it looks odd

  12. iheartfood
    • 3 years ago
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    okay so how should i put it in my calc?

  13. jim_thompson5910
    • 3 years ago
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    log(5*8/5) + log( 8/5 - 1) for the left side

  14. iheartfood
    • 3 years ago
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    =6812412374 is that right?

  15. jim_thompson5910
    • 3 years ago
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    whoa...way too big

  16. jim_thompson5910
    • 3 years ago
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    oh you meant 0.6812412373 right?

  17. iheartfood
    • 3 years ago
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    yeah sorry my bad!!

  18. iheartfood
    • 3 years ago
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    weird i thought i pressed the "." lol

  19. jim_thompson5910
    • 3 years ago
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    do the same for the right side

  20. iheartfood
    • 3 years ago
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    8/5log3 ?

  21. jim_thompson5910
    • 3 years ago
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    log( 3 * 8/5 ) = ???

  22. iheartfood
    • 3 years ago
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    ohhh okay =same as above :)

  23. jim_thompson5910
    • 3 years ago
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    so 8/5 is a solution is -8/5 a solution??

  24. iheartfood
    • 3 years ago
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    so my answer is automatically A. x=8/5 ??

  25. jim_thompson5910
    • 3 years ago
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    no it might be 0 or -8/5

  26. jim_thompson5910
    • 3 years ago
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    haven't ruled them out yet

  27. iheartfood
    • 3 years ago
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    idk lemme check :) left side umm it won't even let me enter it.. it says error..

  28. jim_thompson5910
    • 3 years ago
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    that's because the domain of log(x) is x > 0 so x = 0 and x = -8/5 aren't even defined

  29. iheartfood
    • 3 years ago
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    kk so my answer is just x=8/5 then?? A. x=8/5 is my answer right?

  30. jim_thompson5910
    • 3 years ago
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    exactly

  31. iheartfood
    • 3 years ago
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    awesome! :) Thanks!

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