Page 1
1.
Find the annual growth factor for a quantity that doubles every 98 days. (Round the
answer to 2 decimal places.)
2.
Create a function for the diameter of a tumor after t days if the volume of the tumor
doubles every 162 days and the tumor has an initial volume of 0.42 cubic cm. (Round
all numbers to 5 decimal places.)
3.
A national organization for retired persons claims that a retiree should have 9 years
worth of income saved plus any additional amount needed to relocate (if desired) after
retirement. The annual inflation rate is approximately 1.3%. A person who currently
earns $38,000 per year wishes to relocate upon retirement. The move would cost
$17,700 in today’s money. Create a function for the amount this person should plan to
have in savings at retirement if they plan to retire in t years.
4.
A national organization for retired persons claims that a retiree should have 8 years
worth of income saved plus any additional amount needed to relocate (if desired) after
retirement. The annual inflation rate is approximately 1.3%. A person who currently
earns $34,000 per year wishes to relocate upon retirement. The move would cost
$18,200 in today’s money. How much should this person plan to have in savings at
retirement if they plan to retire in 11 years. (Round the answer to the nearest penny.)
5.
A new virus has been discovered and is spreading through the population of a small
island nation. It is estimated that each person who is infected will spread the virus to 6
people each day. Construct a function to model the number of people infected after t
days if the virus started with just one person on day 1.
6.
A new virus has been discovered and is spreading through the population of a small
island nation. It is estimated that each person who is infected will spread the virus to 6
people each day. How many people would be infected after 9 days if the virus started
with just one person on day 1.
Page 2
Answer Key