unit 7 exam

Question 1

P= P0 (1+/-r)>t

P0= initial population
r= rate as a decimal (positive for growth, negative for decay)
t= amount of time in years

Answer 1

population growth equation

Question 2

V= V0 (1+ +/- r)>t

V0= object’s initial value
r= rate of decrease or increase (negative for decrease, positive for increase)
t= time in years

Answer 2

Depreciation/Appreciation

Question 3

A= Pe>rt
p= principal amount invested
r= interest rate
t= time

Answer 3

Compounded Interest- Continuously

Question 4

A= P(1+ r/n) >nt
P= principal amount invested
r= interest rate
n= number of times interest is compounded per year
t= time in years

Answer 4

Compound Interest- Compunded n times per year