(hi can someone help me with this?) If f(x) = 4x - 3, what is f(x)^-1? a.) x/4 + 3
b.) x + 3/ 4
c.) 3 - 4x
d.) 4/x+3

Identify the number as a rational or irrational.explain. 127

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

The population of a small rural town in the year 2006 was 2,459. the population can be modeled by the function below, where f(x residents and t is the number of years elapsed since 2006. f(t) = 2,459(0.92)