Finding the value of A and b from a log graph.

davesterrr

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Aug 11, 2017
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This is the question in my book: https://image.prntscr.com/image/eoWEl6z_S36xtBk7l6Z6WQ.png
i made on paint how far i got so far.


However i'm having trouble with the last 2-3 questions.
I believe "A'' is 1,9 because for the differential equation i took: 0,74-0,175 = 0,565
and 0,003-0,298 = 0,298 and 0,565/0,298= 1,9


however can someone verify that that's correct?
And if someone could help me with the other two, i'll very much appreciate it.
Thank you.
 

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