Amy is doing a science experiment on how a certain bacterium reacts to an antibiotic. she has 3 dishes of identical bacterium samples with 16 bacteria in each dish. she gives an antibiotic to all of the bacteria in one dish. all of the treated bacteria died, and the bacteria in the other two dishes survived.

what type of sampling is demonstrated in the situation above?

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv