The equation -2(4-5i)=-8+10i demonstrates which of the following properties? A: distributive
B: identity
C: associative
D: commutative

The sum of two numbers is 86, and their difference is 20. find the two numbers

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

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2