Exponential Growth and Decay (VCE SSCE Mathematical Methods): Quizzes

The initial quantity at time $t = 0$

Exponential growth

$b < 1$

Time for the population to double

$N = N_0 2^{\frac{t}{T_D}}$

To make it a decay model ($k$ is positive)

Time for half the material to decay

$1.11$

$0.95$

To ensure accuracy in later calculations