- #1
Intr3pid
- 39
- 0
hello everyone
I'm really stuck on logs. My teacher doesn't take pride in her work and teaches very sloppy stuff. I was wondering if I can get help with these questions.
1) log to the base 3 of x - log to the base 6 of x = 2
2) a lab tecnician places a bacterial cell into a vial at 5 am. The cells divide in such a way that the number of cells doubles every 4 minutes. The vial is full 1 hour later.
a) how long does it take fot the cells to divide to 4095?
b) at what time is the vial full?
c) at what time is the vial 1/16 full?
for #2, how do you know which "formula" to use. My teacher presented me with 3 formulas:
Ptotal = Pone x e^kt
Atotal = Aone x C^t/p
A = Pe^it
e= is the irrational number 2.71828...
thanks in advance
I'm really stuck on logs. My teacher doesn't take pride in her work and teaches very sloppy stuff. I was wondering if I can get help with these questions.
1) log to the base 3 of x - log to the base 6 of x = 2
2) a lab tecnician places a bacterial cell into a vial at 5 am. The cells divide in such a way that the number of cells doubles every 4 minutes. The vial is full 1 hour later.
a) how long does it take fot the cells to divide to 4095?
b) at what time is the vial full?
c) at what time is the vial 1/16 full?
for #2, how do you know which "formula" to use. My teacher presented me with 3 formulas:
Ptotal = Pone x e^kt
Atotal = Aone x C^t/p
A = Pe^it
e= is the irrational number 2.71828...
thanks in advance