This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
Unformatted text preview: Surname:(blockletters) Given Name:
Student Number: Math 122 TEST 4 (Based on Assignments 11, 12, 13, and 14)
Version 2A Jan.27, 2011 This test consists of 3 questions to be answered in the space provided.
Show all work and give explanations when needed. “3 l
db 3") s w w W“
1. (21) Find the solution of the differential equation E = b4 and 6(0) = 1.1. I? 1 I
gw 74"“ ,H'
(b) At what value oft does the solution approach inﬁnity? g “in 7 F g
(0) Sketch the solution from t = 0 to the value found in part (b) on the grid {/ , 7‘ b“) H
‘ me :'C I 1 given below, being careful to label the axes and dominant features, and
to use an appropriate scale. Surname: Given Name: db 2. If the model of bacterial population growth is a? = be) where Mb) is a linear
function” ) 9 _
(a) Find Mb) if M0) = 2, and A decreases with a slope of —0.005. A , , C
I“. ’ / I Is b(t) increasing when I) = 100? Is b(t) increasing when I) = 500? ’Ifjiir‘Hl [r‘ ‘3 A” a .2 al A, a?” "w ".2, “(Dear‘3 4, *1!" ram— _ ff ‘1. 1 l ' 3’] r] .J‘J )
( r37" I is? L‘ ‘5‘: /0 C) ( 0"?"
:‘l r .r ‘3 L",
... 31 r a I .3. ,,
a... / O( i‘ {f i we“ “’3 r C b (2") £43 Lad u A .(j
A) :— /0 O
L 7.. Libya ‘
4\J ’ k j. I \ :_ rd 3 (“m ()rL] J J r 11', Surname: Given Name: 3. The concentration of a toxin in a. cell is increasing at a rate of
4.56—0'9tpmol/L/s, starting from a concentration of 5p moi/L. If the cell is
poisoned when the concentration exceeds 25nmol/L, could this cell survive? :74 I, I“ 
4’4; was: *4/4/3 ) J/c / ’ r 1! «L913 Er I git—f“? L". ' '6 MM {{‘f I ‘ V‘ﬂ‘t L
"l [I C." rm i I! r 4‘ ‘—— 91;
O4 k ‘ "f— 3 ’ 1 “
CV.) /
,. r _ 1‘” fl
t; i wt,» 7 L/L’_ t» (I ( 'l ‘ m f f .r' ...
View
Full Document
 Spring '11
 Just
 Economics

Click to edit the document details