Recent content by hobomath

  1. H

    MHB What Is the Sum of the Series \( \sum_{n=1}^\infty \frac{n}{(n+1)!} \)?

    Find the sum of this series: $$ \sum_{n=1}^\infty \frac{n}{(n+1)!} $$ I'm really struggling with this one.. Any help will be highly appreciated. Thanks you.
  2. H

    MHB Integral question about depreciation rate in percentage.

    Hey again, thanks you were a great help!Sorry for the lack of follow-up, but I'm glad I found the same answer as yours. It was truly helpful.
  3. H

    MHB Integral question about depreciation rate in percentage.

    Hello MarkFL, thank you for the reply and the lead. I'm looking into the Newton's law of Cooling right now... I'll reply back if I find anything.
  4. H

    MHB Integral question about depreciation rate in percentage.

    This is my first time tackling this kind of problem. 1. Let $Q$ be the percentage of what he remembers. 2. Let $t$ be the time in weeks. 3. Initial condition 1: $Q=0.95 $ and $t=0$ 5. Initial condition 2: $Q=0.80 $ and $t=1$ Now I'm stuck about finding the rate. From what I understand...
Back
Top