Arock falls off a cliff and hits the ground after three seconds. what is its velocity right before it hits the ground? 9.8 m/s 0.31 m/s 29.4 m/s 3.3 m/s

△cde maps to △stu with the transformations (x, y) arrowright (x − 2, y − 2) arrowright (3x, 3y) arrowright (x, −y). if cd = a + 1, de = 2a − 1, st = 2b + 3 and tu = b + 6, find the values of a and b. the value of a is and the value of b is .

Geometry: determine whether segment mn is parallel to segment kl. justify your answer. jm 6 mk 3 jn 8 nl 4

Which of the following is not a subset of {1,2,3}?