
Discrete Mathematics with Graph Theory (Classic Version) (3rd Edition) (Pearson Modern Classics for Advanced Mathematics Series)
3rd Edition
ISBN: 9780134689555
Author: Edgar Goodaire, Michael Parmenter
Publisher: PEARSON
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Chapter 2.2, Problem 6E
(a)
To determine
Ac when
(b)
To determine
Ac when
(c)
To determine
Ac when
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A linear programming computer package is needed.
Epsilon Airlines services predominately the eastern and southeastern United States. A vast majority of Epsilon's customers make reservations through Epsilon's website, but a small percentage of customers make reservations via phone. Epsilon employs call-center personnel to handle these reservations along with any problems with the
website reservation system and for the rebooking of flights for customers if their plans change or their travel is disrupted. Staffing the call center appropriately is a challenge for Epsilon's management team. Having too many employees on hand is a waste of money, but having too few results in very poor customer service and the potential
loss of customers.
Epsilon analysts have estimated the minimum number of call-center employees needed by day of week for the upcoming vacation season (June, July, and the first two weeks of August). These estimates are given in the following table.
Day
Minimum Number of…
ind
Original: 100-200 = 20,000
200400=20,000 80
602=3600 694761
=4
4x1.3225-6.29
4761/3600 = 1-3225 5.29-1058msy
6). The dose to the body was 200 mSv. Find
the dose to the lung in mrem?
W 200ms
20
2.15
and
8) A technique of 20 mAs, 40 kV produces a
f4 Sy Find the dose to the Thyroid in
original ssD
400x (100) 2 400 x (14)=100
34
10or (2)² = 100 × (0-85) = 100 x = 72.25
100x
40
72.25 =36.13
500
36.13 13.84
O. 7225
12x13.84≈ 166.08mAs
10) The dose of a radiograph was 100 mSv with a technique of: 10 mAs, 180 kV at 200 cm and
tabletop. If the technique is changed to: 20 mAs, 153 kV at 100 cm using a 5:1 grid then find the
new dose in rem to the Lungs.
11) A radiographic technique produces an exposure index of EI= 300 and TEI=600 at a source-
to-image receptor distance (SID) of 200 cm, 100 kV, 5:1 grid using 10 mAs. If the technique is
changed to 100 cm and 85 kV and 5 mAs with table top find the new exposure index? What is
the value of DI?
10
Chapter 2 Solutions
Discrete Mathematics with Graph Theory (Classic Version) (3rd Edition) (Pearson Modern Classics for Advanced Mathematics Series)
Ch. 2.1 - 5{x+2y|x{0,1,2},y{2,0,2}}Ch. 2.1 - 5{x+2y|x{0,1,2},y{2,0,2}}Ch. 2.1 - If A={a,b}, then bA.Ch. 2.1 - Prob. 4TFQCh. 2.1 - {,{}}Ch. 2.1 - {,{}}Ch. 2.1 - True/False Questions
7.
Ch. 2.1 - Prob. 8TFQCh. 2.1 - (Assume A and B are sets). ABBA.Ch. 2.1 - If A has two elements, then P(P(A)) has eight...
Ch. 2.1 - Prob. 1ECh. 2.1 - 2. List five elements in each of the following...Ch. 2.1 - Let A={1,2,3,4}. List all the subsets B of A such...Ch. 2.1 - 4. Let . Are the following statements true or...Ch. 2.1 - 5. Determine which of the following are true and...Ch. 2.1 - Prob. 6ECh. 2.1 - Determine which of the following are true and...Ch. 2.1 - Prob. 8ECh. 2.1 - a) List all the subset of set {a,b,c,d} that...Ch. 2.1 - (a) How many elements are in the power set of the...Ch. 2.1 - Prob. 11ECh. 2.1 - Prob. 12ECh. 2.1 - Prob. 13ECh. 2.1 - Prob. 14ECh. 2.2 - Prob. 1TFQCh. 2.2 - Prob. 2TFQCh. 2.2 - Prob. 3TFQCh. 2.2 - Prob. 4TFQCh. 2.2 - If A and B are setsand AB, then AB.Ch. 2.2 - Prob. 6TFQCh. 2.2 - The name of Augustus De Morgan appears in both...Ch. 2.2 - (AC)(BcAc).Ch. 2.2 - True/False Questions
9.
Ch. 2.2 - Prob. 10TFQCh. 2.2 - List A={xN|x7},B={xZ||x2|4} and C={xR|x34x=0}:...Ch. 2.2 - Prob. 2ECh. 2.2 - Prob. 3ECh. 2.2 - Prob. 4ECh. 2.2 - For A={a,b,c,{a,b}}, find (a) A{a,b} (b) {}P(A)...Ch. 2.2 - Prob. 6ECh. 2.2 - 7. Let , and . List the elements in the...Ch. 2.2 - Let n3 and A={1,2,3,.....n}. (a) How many subsets...Ch. 2.2 - Prob. 9ECh. 2.2 - 10. The universal set for this problem is the set...Ch. 2.2 - Prob. 11ECh. 2.2 - 12. Let P denote the set of primes and E the set...Ch. 2.2 - For nZ, let An={aZ|an}. Find each of the following...Ch. 2.2 - Prob. 14ECh. 2.2 - 15. Let , and .
(a) Draw a Venn diagram showing...Ch. 2.2 - Prob. 16ECh. 2.2 - Prob. 17ECh. 2.2 - Prob. 18ECh. 2.2 - Prob. 19ECh. 2.2 - Prob. 20ECh. 2.2 - Prob. 21ECh. 2.2 - Prob. 22ECh. 2.2 - Prob. 23ECh. 2.2 - Prob. 24ECh. 2.2 - Prob. 25ECh. 2.2 - Prob. 26ECh. 2.2 - Prob. 27ECh. 2.2 - Prob. 28ECh. 2.2 - Prob. 29ECh. 2.2 - Prob. 30ECh. 2.2 - Prob. 31ECh. 2.3 - {(x,x+1)|xN} is a binary relation on N, the set of...Ch. 2.3 - True/False Questions
2. is a binary relation on...Ch. 2.3 - Let be a binary relation on a set A and let aA....Ch. 2.3 - Let R be a binary relation on a set A and let aA....Ch. 2.3 - Let R be a binary relation on a set A. If R is not...Ch. 2.3 - True/False Questions
6. Let be a binary relation...Ch. 2.3 - True/False Questions
7. Let be a binary relation...Ch. 2.3 - If a binary relation R is antisymmetric, then R is...Ch. 2.3 - If a binary relation R is notsymmetric, then it is...Ch. 2.3 - True/False Questions
10. Let be a binary relation...Ch. 2.3 - Let B denote the set of books in a college library...Ch. 2.3 - 2. Let A denote the set of names of streets in St....Ch. 2.3 - Determine which of the properties reflexive,...Ch. 2.3 - 4. With a table like that in Fig. 2.2, illustrate...Ch. 2.3 - 5. Let . List the ordered pairs in a relation on A...Ch. 2.3 - 6. Is it possible for a binary relation to be both...Ch. 2.3 - What is wrong with the following argument, which...Ch. 2.3 - Determine whether each of the binary relations R...Ch. 2.3 - Determine whether each of the binary relations R...Ch. 2.3 - Prob. 10ECh. 2.3 - Prob. 11ECh. 2.3 - Prob. 12ECh. 2.3 - Prob. 13ECh. 2.4 - True/False Questions
“” defines an equivalence...Ch. 2.4 - An equivalence relation on a set A is a binary...Ch. 2.4 - Prob. 3TFQCh. 2.4 - Prob. 4TFQCh. 2.4 - Prob. 5TFQCh. 2.4 - Prob. 6TFQCh. 2.4 - Prob. 7TFQCh. 2.4 - Prob. 8TFQCh. 2.4 - Prob. 9TFQCh. 2.4 - Prob. 10TFQCh. 2.4 - Prob. 11TFQCh. 2.4 - Prob. 1ECh. 2.4 - 2. Explain why each of the following binary...Ch. 2.4 - Prob. 3ECh. 2.4 - Prob. 4ECh. 2.4 - Prob. 5ECh. 2.4 - For natural numbers a and b, define a~b if and...Ch. 2.4 - Prob. 7ECh. 2.4 - 8. For integers a, b, define if and only if for...Ch. 2.4 - 9. Define ~ on Z by if and only if is a multiple...Ch. 2.4 - 10. For integers a and b, define if for some...Ch. 2.4 - 11. For , define if and only if .
(a) Prove that...Ch. 2.4 - For a,bZ, define a~b if and only if a2b2 is...Ch. 2.4 - Prob. 13ECh. 2.4 - Prob. 14ECh. 2.4 - Prob. 15ECh. 2.4 - Define ~ on R2 by (x,y)~(u,v) if and only if...Ch. 2.4 - Prob. 17ECh. 2.4 - Determine which of the following define...Ch. 2.4 - Prob. 19ECh. 2.4 - Prob. 20ECh. 2.4 - Prob. 21ECh. 2.4 - 22. Let A be the set of all natural numbers and ~...Ch. 2.4 - Prob. 23ECh. 2.4 - Prob. 24ECh. 2.4 - Prob. 25ECh. 2.5 - A partial order on a set A is a reflexive,...Ch. 2.5 - Prob. 2TFQCh. 2.5 - True/False Questions
3. The binary relation “” on...Ch. 2.5 - Prob. 4TFQCh. 2.5 - Hasse diagrams are used to identify the...Ch. 2.5 - Prob. 6TFQCh. 2.5 - Prob. 7TFQCh. 2.5 - Prob. 8TFQCh. 2.5 - Prob. 9TFQCh. 2.5 - The statement in Question 9 is the contrapositive...Ch. 2.5 - 1. Determine whether each of the following...Ch. 2.5 - 2. (a) List the elements of the set in...Ch. 2.5 - List all pairs (x,y) with xy in the partial orders...Ch. 2.5 - Prob. 4ECh. 2.5 - Prob. 5ECh. 2.5 - Prob. 6ECh. 2.5 - In the poset (P(S),) of subsets of a set S, under...Ch. 2.5 - Prob. 8ECh. 2.5 - Prob. 9ECh. 2.5 - 10. (a) Let and, for and in A, define if and...Ch. 2.5 - Prob. 11ECh. 2.5 - Prob. 12ECh. 2.5 - Prob. 13ECh. 2.5 - Prob. 14ECh. 2.5 - Prob. 15ECh. 2.5 - Prob. 16ECh. 2.5 - Prob. 17ECh. 2.5 - Prob. 18ECh. 2 - If A={xN|x7},B={xZ||x5|3}andC={2,3}, find (AB)C.Ch. 2 - Let A={xZ|1x2},B={2x3|xA},andC={xR|x=ab,aA,bB}....Ch. 2 - Prob. 3RECh. 2 - Prob. 4RECh. 2 - 5. This exercise refers to the Venn diagram shown...Ch. 2 - Prob. 6RECh. 2 - Let A={1}. Find P(P(A)).Ch. 2 - Prob. 8RECh. 2 - Give an example showing that the statement...Ch. 2 - Prob. 10RECh. 2 - 11. Let A be a set.
(a) What is meant by the term...Ch. 2 - Let A={xR||x|1} and, for a,bA, define (a,b)R if...Ch. 2 - Determine whether ~ is reflexive, symmetric,...Ch. 2 - For a,bN, define a~b if and only if ab. Determine...Ch. 2 - 15. Define a relation R on Z by if is a multiple...Ch. 2 - 16. Define a relation R on Z by if is a multiple...Ch. 2 - 17. Let ~ denote an equivalence relation on a set...Ch. 2 - 18. Let ~ denote an equivalence relation on a set...Ch. 2 - Prob. 19RECh. 2 - Let A be the set of points different from the...Ch. 2 - Show that (P(Z),) is a partially ordered set.Ch. 2 - Let A={1,2,4,6,8} and, for a,bA, define a_b if and...Ch. 2 - 23. Let be a poset and . Can a and b have two...
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- exam review please help!arrow_forward0. 75 and 34 KV arved fromise to 75 halfed NAME Genesis Ward 0 mAs is 40 #2). A technique involves 150 mAs, 40 kV and produces an intensity of 2 R. are gone down KV C15%! In = 200% Find the new intensity in mGya, using 300 mAs and 46 kV? =100 206a 150mAS 40KV 2R kv 150 is so divide 00 mA, 200 alue of 100. Boomts 46KY 4). A technique is taken with 100 mA, 200 ms, 60 kV and produces 200 mSv.arrow_forwardFi is 2 O 2 ms, #3). A technique is taken with 100 mA, 200 60 kV and produces an EI value of 100. Find the EI value when this technique is changed to 200 mA, 100 ms, 69 kV? 4) m 2arrow_forward
- 11) A radiographic technique produces an exposure index of EI= 300 and TEI=600 at a source- to-image receptor distance (SID) of 200 cm, 100 kV, 5:1 grid using 10 mAs. If the technique is changed to 100 cm and 85 kV and 5 mAs with table top find the new exposure index? What is the value of DI?arrow_forwardexam review please help!arrow_forward5). The dose to the breast was 120 mGy find the entire body dose represented in rad?arrow_forward
- 1000 x= 800mGy to body X= = rad 7). If EI=300, TEI=500 with mAs = 20 and you want to decrease the kV by 15% then 0.8 Gy what is the new mAs value to set DI=0? =0% 100-00 Dorad 8) A te dose of rem w kV? 2 tom i sv 4sv 48rem to thyr. KV+ I formula K In = Fox2 kV (1979) (48 rem = 8.2 = 16. SVx 100 160oren-body 1600.0.03=X I M M Earrow_forwardCan you solve question 3,4,5 and 6 numerical method use all data i given to you and teach mearrow_forward8 If f(x + y) = f(x)f(y) and Σ f (x) = 2, x, y = N, x=1 where N is the set of all natural number, then the f(4) value of is. f(2)arrow_forward
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