If f(x) = x+7 and g(x) = 1/x-13 , what is the domain of (f*g) (x)?

If we are going to multiply the expression for f(x) and that for g(x), we will get,

                        (x + 7)(1/x-13)

This can be further simplified into,

                        (x + 7)(x – 13)

In this simplified expression, it can be noted that all real numbers can be used to replace x in the expression except for 13. This is because if we replace x with 13, it will make our denominator equal to 0 and our expression becomes indefinite.

The answer is that the domain of (f*g)(x) is all real numbers except 13.

the answer   is 200

step-by-step explanation:

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! )

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times