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anonymous

  • one year ago

A rotor is run at the following speeds for intervals of 1 minute: |Minute: | 1 | 2 | 3 | 4 | |Speed: | 1 | 2 | 4 | 8 | How many minutes will it take to reach a speed of 64 meters per second? a.) 6 b.) 7 c.) 8 d.) 9 Thank you oh so very much. <3 Xoxoxo.

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  1. welshfella
    • one year ago
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    Hint; the speed is doubling every minute

  2. anonymous
    • one year ago
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    finish the chart. 1 - 1 2 - 2 3 - 4 4- 8 5 - 10 6 - 12 7 - 14 8 - 16 9 - 18

  3. anonymous
    • one year ago
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    Lets make it simple. C

  4. anonymous
    • one year ago
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    10 - 20 11 - 22 12 - 24 14 - 26 15 - 28 16 - 30 18 - 32

  5. anonymous
    • one year ago
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    19 - 34 20 - 36 21 - 38 22 - 40 ugh.. this is tedious. :( lol

  6. anonymous
    • one year ago
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    Your answer is C lol

  7. anonymous
    • one year ago
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    by the time u reach 64 you will be at your 8th interval. so u could just multiply :/

  8. anonymous
    • one year ago
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    Lol, sorry. I know I look like an idiot. For some reason math just doesn't click... like at all for me. Haha.. Thank you though. ^_^

  9. welshfella
    • one year ago
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    after 5 seconds the speed is 2*8 = 16 after 6 s it will be 2*16 = 32 after 7 s what would the speed be?

  10. anonymous
    • one year ago
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    48 >_>

  11. welshfella
    • one year ago
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    the answer is not 8

  12. welshfella
    • one year ago
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    note the common factor is 2 each term is obtained from previous by multiplying by 2

  13. anonymous
    • one year ago
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    8 is the closes man. or girl... idk

  14. welshfella
    • one year ago
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    man

  15. anonymous
    • one year ago
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    okay cool

  16. anonymous
    • one year ago
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    Ooooh! So it's 2 * 32!

  17. welshfella
    • one year ago
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    this sequence is called a geometric sequence with common ratio 2

  18. welshfella
    • one year ago
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    yes

  19. anonymous
    • one year ago
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    Yaaay so it's 7!

  20. welshfella
    • one year ago
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    7th term = 2*32

  21. welshfella
    • one year ago
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    yea

  22. anonymous
    • one year ago
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    Gah! Thank you for your patience with me. It's greatly appreciated :)

  23. welshfella
    • one year ago
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    yw

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