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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    |dw:1439771942859:dw|

  2. tkhunny
    • one year ago
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    What do you think and how are you producing results?

  3. anonymous
    • one year ago
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    sn=a1-1rn/1-r sn=20-20(0.5)^12/1-0.5

  4. anonymous
    • one year ago
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    I got 39.98 but I think that's wrong?

  5. tkhunny
    • one year ago
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    Not bad, excepting notation... sn=(a1-a1r^n)/(1-r) sn=(20-20(0.5)^12)/(1-0.5 ) All those extra parentheses are not optional. Good work. Did you manage really close to 10?

  6. anonymous
    • one year ago
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    No. I got 39.98 for some reason

  7. tkhunny
    • one year ago
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    Use n = 3 and recalculate the first value, a1.

  8. anonymous
    • one year ago
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    ok, so I guess it would be 9.99?

  9. tkhunny
    • one year ago
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    There you go.

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