Answer:
10077
Explanation:
A culture of bacteria has an initial population of 5400 bacteria and doubles every 10 hours. Using the formula P_t = P_0\cdot 2^{\frac{t}{d}}P 
t
 
 =P 
0
 
 ⋅2 
d
t
 
 
 , where P_tP 
t
 
 is the population after t hours, P_0P 
0
 
 is the initial population, t is the time in hours and d is the doubling time, what is the population of bacteria in the culture after 9 hours, to the nearest whole number?
P_0=5400
P 
0
 
 =5400
The initial population
t=9
t=9
Time elapsed
d=10
d=10
The doubling time
P_t = P_0\cdot 2^{\frac{t}{d}}
P 
t
 
 =P 
0
 
 ⋅2 
d
t
 
 
 
P_t=5400\cdot 2^\frac{9}{10}
P 
t
 
 =5400⋅2 
10
9
 
 
 
Plug in
P_t=10076.7563\approx10077
P 
t
 
 =10076.7563≈10077
Use parenthesis in the calculator for the exponent