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MA 122 Section B1
Quiz#1
Arazyan, Spring 2008
Student Name _______KEY (1) _________
Discussion Section #___ BU ID#_______________
Show all your work for full credit.
1.
(12 points)
An oil tanker aground on a reef is losing oil and producing an oil slick that is
radiating outward at a rate given approximately by
0
16
60
≥
+
=
t
t
dt
dR
where
R
is the radius (in feet) of the circular slick after
t
minutes. Find the radius of the slick
after 9 minutes if the radius is 0 when
0
=
t
.
Solution:
dt
du
t
u
feet
R
t
t
R
C
C
R
C
t
C
u
C
u
du
u
du
u
dt
t
t
R
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This note was uploaded on 04/17/2008 for the course MA 122 taught by Professor Arazyan during the Spring '08 term at BU.
 Spring '08
 Arazyan

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