Answer:
Step-by-step explanation:
given that a bacteria population starts with 80 bacteria and doubles every four hours,
The function representing the number of bacteria after t hours
= 
We are to find the inverse of the function
i.e. we must make t = g(n) where g is a function of n.
Take log on both sides.

this is the inverse function.
Answer:
thankyou for points!!!!!!!!!!!
Answer:
k = 2
Step-by-step explanation:
Based on the right triangle altitude theorem, thus:
4 = √(k*8)
Square both sides
4² = k*8
16 = 8k
Divide both sides by 8
16/8 = 8k/8
2 = k
k = 2