the atoms of a radioactive element are randomly disintegrating. if every jam of this element on average emits 3.9 alpha particle per second, what is the probability that during the next second the number of alpha particles from 1 gram is at most 6, at least 2, at least 3 and at most 6

What is the value of f(x) = 2.2 for f(-2)?

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b