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newwar

  • one year ago

Miranda is adding the numbers below. What is the sum written in scientific notation? A. B. C. D.

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  1. newwar
    • one year ago
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  2. newwar
    • one year ago
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    @AmyRoseRules

  3. newwar
    • one year ago
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    @pooja195

  4. dm91
    • one year ago
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    what grade are you in because i can try to help you but you have to help me out as well

  5. newwar
    • one year ago
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    8th

  6. dm91
    • one year ago
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    ok i might know you i am in 8th as well my name is Mary

  7. newwar
    • one year ago
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    my name is james do u do k12

  8. dm91
    • one year ago
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    yes

  9. newwar
    • one year ago
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    ok cool

  10. dm91
    • one year ago
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    k so you would do 2.9*10=29

  11. newwar
    • one year ago
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    29

  12. dm91
    • one year ago
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    then you would do 5,35*10=53.5

  13. dm91
    • one year ago
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    ok now the fun part

  14. dm91
    • one year ago
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    ok james are you understanding what i am doing?

  15. newwar
    • one year ago
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    yes

  16. dm91
    • one year ago
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    ok i did it wrong to a point. If you add 2.9+5.35 what would you get?

  17. newwar
    • one year ago
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    8.25

  18. dm91
    • one year ago
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    ok that is right

  19. newwar
    • one year ago
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    ok so what do i do next

  20. dm91
    • one year ago
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    ok so what would you say you would do next?

  21. dm91
    • one year ago
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    your answer would be D

  22. newwar
    • one year ago
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    ok thank u

  23. jdoe0001
    • one year ago
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    think of the \(10^{10}\) as, say, a variable thus \(\bf 2.9\times 10^{10}+5.35\times 10^{10}\qquad say\quad 10^{10}=a \\ \quad \\ 2.95a+5.35a\cdot (2.95+5.35)a\implies (8.25)a\implies 8.25\times 10^{10}\)

  24. dm91
    • one year ago
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    ya you can think of it that way as well

  25. newwar
    • one year ago
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    lol

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