5) If the vectors u = 2i + 3j+k, v=i-2j + 2k, and w = 3i + aj + 3k lie on the same plane, find the value of a.

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given

How can you construct perpendicular lines and prove theorems about perpendicular lines