Situation: Find the substance's half-life, in days.
Round your answer to the nearest tenth.
A 40 gram sample of a substance that's
used for drug research has a k-value of
0.1472.
Enter the correct answer.
N - Noe
-kt
DONE
No - initial mass (at time t = 0)
112
N = mass at time t
k= a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days