Which equation correctly applies the distributive property? 50+1.015=(50⋅1)+(50⋅0.01)+(50⋅0.005 )

−1.2⋅0.57⋅0.5=−1.2⋅0.5⋅0.57

(0.5⋅0.5)+(0.5⋅0.3)+(0.5⋅0.2)=0.5⋅( 0.5+0.3+0.2)

−2.5⋅(4⋅1.045)=(−2.5⋅4)⋅1.045

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