Use the following relation on the set {1,5,6,8}: r = {(1,1), (1,5), (1,6), (1,8), (5,1), (5,5), (6,1), (6,8), (8,1), (8,6), (8,8)}
6. draw the arrow diagram and the matrix representation for the relation r (4 points): state whether relation r is reflexive, transitive, symmetric, or antisymmetric (4 points).

—the graph shows how fast a strand of human hair grows. how many inches would the hair have grown in 5 months

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

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.