Practice

I am back! But voiceless. If this had been a regular day, we would have done one problem together. Below are the problems that various periods picked last year...which ended up being all of them.

#39


#40 (this sets up a system of three equations and three unknowns, which you then need to solve)


#87 (this sets up a system of three equations and three unknowns, which you then need to solve)

So basically today you worked on these three problem sets, with whisper help from me:

p.269 #31, 32, 33, 39
p.269 #35, 40, 87
p.263 Conceptual #6 & 12 + p.273 #70, 74, 78 (this one is new)

All of these do need to be done eventually, but I won't count any of them late, ever. I recommend figuring out how to do them before your test, though.