The effectiveness of a supplement is given by where is the body's reaction to the supplement and g is the number of grams of the supplement administered to the subject. for a particular drug. 9(400-9) a. find the effectiveness of this drug when 50g is administered. b. after how many units of the drug administered does the effectiveness of the drug start to decrease? give your answer to one decimal place. is e, not de

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the answer   is 200

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this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )

this is not the answer this is just a question. is this middle school math?

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