In Problems 79-82, assume that the annual interest rate on a credit card is 25.74 % and interest is calculated by the average daily balance method. The unpaid balance at the start of a 28 -day billing cycle was $ 1 , 837.23 . Purchases of $ 126.54 and $ 52.89 were made on days 21 and 27 , respectively, and a payment of $ 100 was credited to the account on day 20 . Find the unpaid balance at the end of the billing cycle.
In Problems 79-82, assume that the annual interest rate on a credit card is 25.74 % and interest is calculated by the average daily balance method. The unpaid balance at the start of a 28 -day billing cycle was $ 1 , 837.23 . Purchases of $ 126.54 and $ 52.89 were made on days 21 and 27 , respectively, and a payment of $ 100 was credited to the account on day 20 . Find the unpaid balance at the end of the billing cycle.
Solution Summary: The author calculates the unpaid balance at the end of the billing cycle by the average daily balance method.
In Problems 79-82, assume that the annual interest rate on a credit card is
25.74
%
and interest is calculated by the average daily balance method.
The unpaid balance at the start of a
28
-day billing cycle was
$
1
,
837.23
. Purchases of
$
126.54
and
$
52.89
were made on days
21
and
27
, respectively, and a payment of
$
100
was credited to the account on day
20
. Find the unpaid balance at the end of the billing cycle.
EXAMPLE 3
Find
S
X
√√2-2x2
dx.
SOLUTION Let u = 2 - 2x². Then du =
Χ
dx =
2- 2x²
=
信
du
dx, so x dx =
du and
u-1/2 du
(2√u) + C
+ C (in terms of x).
Let g(z) =
z-i
z+i'
(a) Evaluate g(i) and g(1).
(b) Evaluate the limits
lim g(z), and lim g(z).
2-12
(c) Find the image of the real axis under g.
(d) Find the image of the upper half plane {z: Iz > 0} under the function g.
k
(i) Evaluate
k=7
k=0
[Hint: geometric series + De Moivre]
(ii) Find an upper bound for the expression
1
+2x+2
where z lies on the circle || z|| = R with R > 10. [Hint: Use Cauchy-Schwarz]
Chapter 3 Solutions
Pearson eText for Finite Mathematics for Business, Economics, Life Sciences, and Social Sciences -- Instant Access (Pearson+)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.
Compound Interest Formula Explained, Investment, Monthly & Continuously, Word Problems, Algebra; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=P182Abv3fOk;License: Standard YouTube License, CC-BY
Applications of Algebra (Digit, Age, Work, Clock, Mixture and Rate Problems); Author: EngineerProf PH;https://www.youtube.com/watch?v=Y8aJ_wYCS2g;License: Standard YouTube License, CC-BY