After a special medicine is introduced into a petri dish full of bacteria, the number of bacteria remaining in the
dish decreases rapidly.
The relationship between the elapsed time t, in seconds, and the number of bacteria, N(t), in the petri dish is
modeled by the following function:
N(t) = 50,000 - (0.5)^t/4,3
Complete the following sentence about the rate of change in the number of bacteria.
The Petri dish loses 50% of bacteria every
seconds.