Math 1314 – Homework 15  Page 1 of 3
Math 1314
Homework 15
Enter your answers in the EMCF titled “Homework 15” at casa.uh.edu before the due
date/time.
1.
Problem 13.5.2a
A.
0.06
B.
0.06
C.
2000
D.
120
E.
0.06
e

2.
Problem 13.5.2b
A.
120
B.
0.06
e

C.
0.06
D.
0.06
E.
2000
3.
Problem 13.5.2:
Using the decay function that is given, find
(15)
Q
.
A.
4919
B.
813.14
C.
282.52
D.
246.8
E.
653.29
4.
Problem 13.5.4:
Write the function
( )
Q t
that represents the world population (in
billions) as a function of time
t
(in years) where
t
= 0 corresponds to the beginning of
1990.
A.
0.0198
( )
5.406
t
Q t
e
=
B.
0.0198
( )
5.3
t
Q t
e

=
C.
0.0198
( )
5.3
t
Q t
e
=
D.
0.198
( )
5.3
t
Q t
e
=
E.
0.1098
( )
5.3
t
Q t
e
=
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View Full DocumentMath 1314 – Homework 15  Page 2 of 3
5.
Problem 13.5.4:
Use the function you found in Homework Exercise 4 to estimate the
world population in 2010.
A.
278.02 million
B.
8.03 million
C.
47.64 million
D.
7.88 million
E.
3.57 million
6.
Problem 13.5.4:
Find the rate at which population is changing when t = 20.
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 Fall '08
 MARKS
 Math, Statistics, World population

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