Enter the expression N0e−λt, where N0 is N-naught (an N with a subscript zero) and λ is the lowercase Greek letter lambda.

So the question tells to express the expression in your problem where N0 is N-naught and the symbol represent the lower case Greek letter lambda. So the best answer or expression would be that the lambda is the wavelength of the expression. I hope you are satisfied with my answer

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AlonsoDehner AlonsoDehner · Answer 2 · 2019-02-17T11:45:33+01:00

Answer:

Population decay where rate of decay is proportional to the population present

Step-by-step explanation:

Given that

[tex]N(t)=N_{0} e^{-l t}[/tex]

Here N (t) represents the population or amount of bacteria present at time t.

N0 represents the initial population or N(0)

Since e has negative exponent, there is population decay and not expansion.

l, the coefficient of t in the exponent of e is the factor which represents the rate of decay

Whenever decay is proportional to the population present at that time, we get this equation.

N'=-lN

Separate the variables and integrate to get

[tex]N(t)=N_{0} e^{-l t}[/tex]