Let z, o={[0] 10, | | | 10, , [9] 10 } be the set of equivalence classes of z under the relation, "congruence mod- ulo 10," endowed with an addition and a multiplication as presented in lectures. calculate (a)11 (b)岡 (c) for each x e z10 for which it exists, the element y e zo such that xy-yx = [1] 10-

in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.

the answer to 1/4x+5/3x-4=2-1/12x is x=3

hope this if needed hmu

correct answer was 0.5

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%