Arectangular barn door is being constructed using its diagonals, as illustrated in the image below. the doorknob is placed at the intersection of the 2 diagonals. what is the length of x if each diagonal measures 10 feet?
a. 20ft
b. 15ft
c. 5ft
d. 10ft

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°

How can you tell when x and y are not directly proportional?

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