Fall 2012
September 7, 2012
Math 1220-002
Camacho
Quiz#2
Name:
‘V
Ahcw
Directions: Show your work in answering the following questions. Write your final answers in
the spaces provided.
The population of South Park doubles every 8 years.
1.
how long will it take for the population to reach 5,000?
(
years
,c
SoLc
ci—cy
If its population today is 1,000,
j)opt;L1TY’
g
?
1)
flii
.t
5OO
PG
I 00
uvoe.
S.)
kic)
P( I0OOc
gi
2
)c
2.
jOuO
Use the integrating factor technique to solve the following differential equation:
and
y(x)
=
y’
=
S
X*JE
2
3
y
/
u(
Stm
<
3
t
0
ç
3
i)
L)
5-
c°
2
zI
::\)IL()
(Ii
C
-
—