HW#11

For number 7b, the problem asks you to revolve R about the y-axis, but in the answers, it says V(y).
I thought that shells were opposite, meaning this problem would be solved with v(x)?
If anyone could answer this, that'd be great.
Thanks!

Help on HW#5

Hi!

Does anyone know how to do number six, seven, and eight on HW# 5? :D

Jean

Logistic Growth questions.

The formulas for Logistic growth in the solutions/book are a bit different from the formulas given to us on Friday.
For example, on Friday we learned that
However, in the book the formula is
Also, we learned that
But in the book they have
I remember Mrs. Carlson wrote up different ways to write P but I didn't copy those down, and I wasn't sure if that was just a different way to write the formula.
I was hoping someone could clear this up because I'm really confused.
Which one do we use for the homework?
Thanks!

EDIT: I just read the e-mail.
I got it now. :]

Note re: The Weird Integrals

There were a couple of mistakes, so I went ahead and changed it. If you happened to copy them doen from the previous post, PLEASE make sure you take a look and see what's changed.
Also, make sure you remember the following trig formulas: