Answer:
The doubling time is of 27.65 minutes.
Step-by-step explanation:
Exponential equation of growth:
The exponential equation for population growth is given by:
In which P(0) is the initial value and k is the growth rate.
A freshly inoculated bacterial culture of Streptococcus contains 100 cells.
This means that . So
When the culture is checked 60 minutes later, it is determined that there are 450 cells present.
This means that , and we use this to find k. So
So
Doubling time:
This is t for which P(t) = 2P(0) = 200. So
The doubling time is of 27.65 minutes.
Answer:
B. (-1,7)
C. (0,5)
D. (2,3)
Step-by-step explanation:
We solve this question looking at the graphic.
A. (-7, 1)
When , and thus (7,-1) is not solution of the equation.
B. (-1,7)
When , and thus (-1,7) is a solution of the equation.
C. (0,5)
When , and thus (0,5) is a solution of the equation.
D. (2,3)
When , and thus (2,3) is a solution of the equation.
E. (3, 2)
When , and thus (3,2) is not part of the solution
F. (5,0)
When , and thus (5,0) is not part of the solution
I insert an image graphing the function.
<h3>Function: </h3>
<h3><em><u>MissSpanish</u></em></h3>
Answer:
x
=
1.13504161
…
,
−
1.46837494
…
Step-by-step explanation:
hope this helps(::