Which one of the following triangles is NOT a right triangle?

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

Can someone me and do the problem plz so i can understand it more better

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