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anonymous

  • one year ago

i need help fan and medal

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  1. anonymous
    • one year ago
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    how do you get 9.49*10^3 kg from 2.48*10^2 kg + 9.17*10^3 kg+7.2*10^1 kg

  2. RamiroCruzo
    • one year ago
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    @hershey21 You should firstly make all the powers same & then take them as common & then add...........

  3. Rushwr
    • one year ago
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    \[2.48kg * 10^{2} = 2\] \[9.17kg * 10^{3} = 9170kg\] \[7.2 * 10^{1} = 72kg\]

  4. Rushwr
    • one year ago
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    \[248 kg * \] oops sorry for this error

  5. Rushwr
    • one year ago
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    \[248 + 9170 + 72 = 9490kg \]

  6. Rushwr
    • one year ago
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    \[9490kg = 9.49kg * 10^{3}\]

  7. anonymous
    • one year ago
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    nevermind about what I said I mean why did you add a zero to the and of 917

  8. Rushwr
    • one year ago
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    no no i think i mentioned again there was a typing error , u don't round off 2.48 * 10^2 = 248kg Look at the added value, i have added 248 ! not 2 :)

  9. anonymous
    • one year ago
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    nevermind about what I said I mean why did you add a zero to the and of 917

  10. Rushwr
    • one year ago
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    10^3 = 1000 right?

  11. anonymous
    • one year ago
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    yes

  12. Rushwr
    • one year ago
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    so 9.17kg * 1000 = 9170kg

  13. anonymous
    • one year ago
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    ohh ok

  14. anonymous
    • one year ago
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    thanks

  15. Rushwr
    • one year ago
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    Ok

  16. anonymous
    • one year ago
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    @Rushwr I have another question for this equation I'm kind of confused because of the negative but 4.07*10^-5mg +3.966*10^-4mg+ 7.1*10^-2 is the answer 4.4737*10^-5

  17. Rushwr
    • one year ago
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    \[10^{-5} = 0.00001 \] right?

  18. anonymous
    • one year ago
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    um how is it 0.00001 im confused

  19. Rushwr
    • one year ago
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    \[10^{-5} = \frac{ 1 }{ 10^{5} } \] right?

  20. anonymous
    • one year ago
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    yes

  21. Rushwr
    • one year ago
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    now divide 1 by 10^5 and see what's the value u get

  22. RamiroCruzo
    • one year ago
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    Simply write 1 & place 4 zeroes before it so that 5 digits are after decimal point(.)

  23. anonymous
    • one year ago
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    wow that was much easier @RamiroCruzo

  24. anonymous
    • one year ago
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    so would you write one even if its 10^-6 or 10^-3

  25. RamiroCruzo
    • one year ago
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    Use it whenever confused, you just need to place that much digits as there are in exponent power........ 10^(6)= 0.000001

  26. RamiroCruzo
    • one year ago
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    @hershey21 Is it okay now mate........

  27. anonymous
    • one year ago
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    i think so am just redoing the equation again

  28. anonymous
    • one year ago
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    so is it 7.14373*10^-2

  29. RamiroCruzo
    • one year ago
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    Yup.......Congrats............

  30. anonymous
    • one year ago
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    idk why @Rushwr but thank you @RamiroCruzo and @Rushwr have a nice day :)

  31. RamiroCruzo
    • one year ago
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    :D

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