Solve the equation for the value of x

-5x=35

Please show your work, thank you.

1. are the triangles similar and if so why? what is the value of x? show your work.

If a || b and e || f , what if the value of y ?

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