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mmend98

  • one year ago

hello

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  1. mmend98
    • one year ago
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  2. mmend98
    • one year ago
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    I recieved B as my answer

  3. mmend98
    • one year ago
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    @ganeshie8

  4. ganeshie8
    • one year ago
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    |dw:1439761442349:dw|

  5. ganeshie8
    • one year ago
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    look at the graphs, what are the \(y\) coordinates at which the blue line is intersecting the circle ?

  6. ganeshie8
    • one year ago
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    Ahh yes, you're right, it is B

  7. mmend98
    • one year ago
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    thank you

  8. ganeshie8
    • one year ago
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    np

  9. mmend98
    • one year ago
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    I have another one

  10. mmend98
    • one year ago
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    Which logarithmic graph can be used to approximate the value of y in the equation 2y = 3?

  11. ganeshie8
    • one year ago
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    not gonna help unless you use the proper ^ sign for exponent

  12. mmend98
    • one year ago
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    haha fair enough. 2^y=3

  13. ganeshie8
    • one year ago
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    good :) just want you know that writing 2y when you really mean 2^y can get you into problems..

  14. mmend98
    • one year ago
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    haha okay

  15. ganeshie8
    • one year ago
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    Since the base is \(2\), we should be using the graph of \(\log_2x\) |dw:1439762168005:dw|

  16. mmend98
    • one year ago
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    ok

  17. mmend98
    • one year ago
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    is that the final graph?

  18. mmend98
    • one year ago
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    this is my last one. thx again for the help

  19. ganeshie8
    • one year ago
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    Yes, notice that the function has the value 3 for the input 8 : |dw:1439762462352:dw|

  20. mmend98
    • one year ago
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    I got A.

  21. ganeshie8
    • one year ago
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    common ratio is \(\frac{1}{4}\) which is clearly between \(-1\) and \(1\) so the sum converges by geometric series test we can eliminate options B and D safely

  22. mmend98
    • one year ago
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    it could be c tho right?

  23. ganeshie8
    • one year ago
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    A is correct!

  24. ganeshie8
    • one year ago
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    C is wrong because plugging i=1 does not give you the first term, 960

  25. mmend98
    • one year ago
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    thank you!

  26. ganeshie8
    • one year ago
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    yw

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spraguer (Moderator)
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