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Emily778

  • 2 years ago

How do I solve for x? 0=o.o3x^2+1.60x

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  1. cebroski
    • 2 years ago
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    Hi, are you looking to solve this by hand or with a graphing calculator?

  2. Emily778
    • 2 years ago
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    I just need step by step on how to do this.

  3. AllTehMaffs
    • 2 years ago
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    \[0=0.03x^2+1.6x\] \[0=(0.03x+1.6)x\] So your two roots are given by \[x=0\] and \[0.03x+1.6=0 \longrightarrow \text{solve for x}\] does that make sense?

  4. Emily778
    • 2 years ago
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    I don't get what to do next though? :(

  5. Emily778
    • 2 years ago
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    PLEASE HELP I HAVE 18 OVERDUE LESSONS

  6. nikato
    • 2 years ago
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    |dw:1384646533925:dw| how would u solve for x

  7. Emily778
    • 2 years ago
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    I don't remember.. OH, WAIT. Don't you subtract the i.6 from the zero?

  8. Emily778
    • 2 years ago
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    1.6*

  9. nikato
    • 2 years ago
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    yea, subtract 1.6 on both sides. then what do u do to isolate the x on the left side after u subtract

  10. Emily778
    • 2 years ago
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    divide ?

  11. Emily778
    • 2 years ago
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    thankyou

  12. nikato
    • 2 years ago
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    yes, what do u get for x

  13. Emily778
    • 2 years ago
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    okay, so I got -106.666666? How do I write that? Would it just be -106?

  14. nikato
    • 2 years ago
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    are u sure u plugged the right numbers into ur calculator?

  15. Emily778
    • 2 years ago
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    yep.

  16. Emily778
    • 2 years ago
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    -3.2/0.03

  17. nikato
    • 2 years ago
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    whre did u get -3.2

  18. Emily778
    • 2 years ago
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    0-1.6

  19. Emily778
    • 2 years ago
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    oh..Oops. :I Awkward

  20. nikato
    • 2 years ago
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    yea, try again

  21. Emily778
    • 2 years ago
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    Okay, I got -53.3333

  22. nikato
    • 2 years ago
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    yea. and u can write that as -53 1/3 if u want. so x=0 or -53 1/3

  23. Emily778
    • 2 years ago
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    is that the answer?

  24. nikato
    • 2 years ago
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    u'll have 2 answers for x

  25. Emily778
    • 2 years ago
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    So should I write down both or just one?

  26. nikato
    • 2 years ago
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    u should write down both becuz both ARE answers for x

  27. Emily778
    • 2 years ago
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    Thankyou so much!

  28. nikato
    • 2 years ago
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    your welcome!

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