Are the pellets round?
Is 0.08" the diameter or the radius or what?
No mine is correct Chris
http://www.wolframalpha.com/input/?i=log%28base8%29%28%28x%5E2-64%29%2F%28x-8%29%29
x cannot equal 8 because you cannot divide by 0
x+8>0 because you cannot find the log of a number that is less than or equal to 0
so
x>-8 and x not equal to +8
$$log_8 \frac{(x-8)(x+8)}{x-8}=log_8 (x+8) \qquad \mbox{where }x>-8\;\; and \;\;x\ne 8$$
$$3logx+logy-logz\\\\ =logx^3+logy-logz\\\\ =log\left(\dfrac{x^3y}{z}\right)$$
log8 0.125 = −1
$$8^{-1}=0.125\\\\$$
You can do the next one by yourself.
Yes , that is what I thought Sally.
That is good - It is nice to know that my answers have been checked - we can all make mistakes.
See this one - it is almost the same.
http://web2.0calc.com/questions/cos-42-1000-x
Just remember that A LOG IS A POWER (or exponent if that is the word you usually use)
$$10^4=1000\quad \rightarrow \quad log_{10}1000=4$$
You can do the others Sally - I think that they are all the same.
If you have problems, ask for more help.
Do it straight on a calc - the web2 calc seems to be having problems with it - I don't know why.
5.286404274 * 10^13
This would be an approximation. I did it on my Casio calc.
Thank you Sally1 (I'll take your comment as a thank you )
+118730 
