a set s of characters is defined recursively by
1. a and b belong to s.
2. if x belongs to s, so does xb.
which of the following string belong to s?
a. a
b. ab
c. aba
d. aaab
e.

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

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

Answer each of the questions for the following diagram: 1. what type of angles are these? 2. solve for x. what does x equal? 3. what is the measure of the angles?