Question #16: If f is a function whose graph is a parabola
sketched above,
then /(x) < 0 whenever
a) x < 0
b) x < -1
c) > 3
d) -1 e) x < -1 or x>3

In what form is the following linear equation written y=9x+2

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

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.