Problem 4.1:
If
P = 300e2t, at what time will P=600?
Problem 4.2:
A strain of bacteria multiply in such a fashion that they double in number every 4
hours.
Find an expression that describes this kind of growth.
Problem 4.3:
Find a function that meets the following:
 = 0.693y |
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Problem 4.4:
The half-life of a substance is the time that it takes for the mass of that substance to decay
to 50% of its original value. If a certain substance has a half-life of 30 minutes, what is
an equation that describes its decay?
Problem 4.5:
After 40 minutes, only 34% of a radioactive compound is remaining. What is the
expression describing its decay?
