Find the nth term
25, 27, 29, 31...

2n+23

because it is a linear sequence

Step-by-step explanation:

25, 27, 29, 31...

they add up in twos each time

so it is 2n

25-2=23

so it is 2n+23

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

Step-by-step explanation:

Given that

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