Consider these maps from the set of students in a discrete mathematics class. under what conditions is the map injective if it assigns to a student his or her
a) mobile phone number.
b) student identification number.
c) final grade in the class.
d) home town.

Another restaurant manager says to you, “i’ve heard that barcelona has a three-step hiring process. candidates first have an interview in which scott does most of the talking, and then they visit barcelona restaurants and record their impressions. this seems like a lot of work. what is a purpose of both these steps? ” what would you tell the manager?

Montesquieu suggested dividing government into

Read the following: (1) liz has become more responsive to her partner's advances since a really beautiful woman moved in next door; (2) unable to accept his desire for other young men, 15-year-old juan immerses himself into his studies; (3) shauntel tells people that her coworker mary dislikes her; though if she were honest, shauntel would realize that it is actually she who dislikes mary; (4) "ben's nasty; he's disgusting," says renee; but renee secretly finds ben attractive. describe the defense mechanism he or she is using.