Mathematics: A Discrete Introduction
3rd Edition
ISBN: 9780840049421
Author: Edward A. Scheinerman
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 3.18, Problem 18.14E
a.
To determine
To find:The value of
b.
To determine
To prove:The equation
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
can you help me solve the parts and show workings please
Suppose that a room containing 1300 cubic feet of air is originally free of carbon monoxide (CO). Beginning
at time t = 0, cigarette smoke containing 4% CO is introduced into the room at a rate of 0.8 cubic feet per
minute. The well-circulated smoke and air mixture is allowed to leave the room at the same rate.
Let A(t) represent the amount of CO in the room (in cubic feet) after t minutes.
(A) Write the DE model for the time rate of change of CO in the room. Also state the initial condition.
dA
dt
A(0)
(B) Solve the IVP to find the amount of CO in the room at any time t > 0.
A(t)
(C) Extended exposure to a CO concentration as low as 0.00012 is harmful to the human body. Find the time
at which this concentration is reached.
t=
minutes
2
18-17-16-15-14-13-12-11-10 -9 -8 -6 -5 -4-3-2-1
$ 6
8 9 10
-2+
The curve above is the graph of a sinusoidal function. It goes through the points (-10, -1) and (4, -1).
Find a sinusoidal function that matches the given graph. If needed, you can enter π-3.1416... as 'pi' in your
answer, otherwise use at least 3 decimal digits.
f(x) =
> Next Question
Chapter 3 Solutions
Mathematics: A Discrete Introduction
Ch. 3.14 - Write the following relations on the set 1,2,3,4,5...Ch. 3.14 - Prob. 14.2ECh. 3.14 - Prob. 14.3ECh. 3.14 - For each of the following relations on the set of...Ch. 3.14 - Prob. 14.5ECh. 3.14 - Prob. 14.6ECh. 3.14 - Prob. 14.7ECh. 3.14 - Prob. 14.8ECh. 3.14 - Prob. 14.9ECh. 3.14 - Prob. 14.10E
Ch. 3.14 - Prob. 14.11ECh. 3.14 - Prob. 14.12ECh. 3.14 - Prob. 14.13ECh. 3.14 - Prob. 14.14ECh. 3.14 - Prove: A relation R on a set A is antisymmetric if...Ch. 3.14 - Give an example of a relation on a set that is...Ch. 3.14 - Drawing pictures of relations. Pictures of...Ch. 3.15 - Prob. 15.1ECh. 3.15 - Prob. 15.2ECh. 3.15 - Prob. 15.3ECh. 3.15 - Prob. 15.4ECh. 3.15 - Prove: If a is an integer, then aa (mod 2).Ch. 3.15 - Prob. 15.6ECh. 3.15 - For each equivalence relation below, find the...Ch. 3.15 - Prob. 15.8ECh. 3.15 - Prob. 15.9ECh. 3.15 - Prob. 15.10ECh. 3.15 - Suppose R is an equivalence relation on a set A...Ch. 3.15 - Prob. 15.12ECh. 3.15 - Prob. 15.13ECh. 3.15 - Prob. 15.14ECh. 3.15 - Prob. 15.15ECh. 3.15 - Prob. 15.16ECh. 3.15 - Prob. 15.17ECh. 3.16 - Prob. 16.1ECh. 3.16 - How many different anagrams (including nonsensical...Ch. 3.16 - Prob. 16.3ECh. 3.16 - Prob. 16.4ECh. 3.16 - Prob. 16.5ECh. 3.16 - Prob. 16.6ECh. 3.16 - Prob. 16.7ECh. 3.16 - Prob. 16.8ECh. 3.16 - Prob. 16.9ECh. 3.16 - Prob. 16.10ECh. 3.16 - Prob. 16.11ECh. 3.16 - Prob. 16.12ECh. 3.16 - Prob. 16.13ECh. 3.16 - Prob. 16.14ECh. 3.16 - How many partitions, with exactly two parts, can...Ch. 3.16 - Prob. 16.16ECh. 3.16 - Prob. 16.17ECh. 3.16 - Prob. 16.18ECh. 3.16 - Prob. 16.19ECh. 3.16 - Prob. 16.20ECh. 3.17 - Prob. 17.1ECh. 3.17 - Prob. 17.2ECh. 3.17 - Prob. 17.3ECh. 3.17 - Prob. 17.4ECh. 3.17 - Prob. 17.5ECh. 3.17 - Prob. 17.6ECh. 3.17 - Prob. 17.7ECh. 3.17 - Prob. 17.8ECh. 3.17 - Prob. 17.9ECh. 3.17 - Prob. 17.10ECh. 3.17 - Prob. 17.11ECh. 3.17 - Prob. 17.12ECh. 3.17 - Prob. 17.13ECh. 3.17 - Prob. 17.14ECh. 3.17 - Prob. 17.15ECh. 3.17 - Consider the following formula: kkn=nk1n1. Give...Ch. 3.17 - Prob. 17.17ECh. 3.17 - Prob. 17.18ECh. 3.17 - Prob. 17.19ECh. 3.17 - Prob. 17.20ECh. 3.17 - Prob. 17.21ECh. 3.17 - Prob. 17.22ECh. 3.17 - Prob. 17.23ECh. 3.17 - Prob. 17.24ECh. 3.17 - Prob. 17.25ECh. 3.17 - Prove: 0nnn+1nn1n+2nn2n++n1n1n+nn0n=n2n.Ch. 3.17 - How many Social Security numbers (see Exercise...Ch. 3.17 - Prob. 17.28ECh. 3.17 - Prob. 17.29ECh. 3.17 - Prob. 17.30ECh. 3.17 - Prob. 17.31ECh. 3.17 - Prob. 17.32ECh. 3.17 - Prob. 17.33ECh. 3.17 - Prob. 17.34ECh. 3.17 - Prob. 17.35ECh. 3.17 - Prob. 17.36ECh. 3.17 - Prob. 17.37ECh. 3.18 - Prob. 18.1ECh. 3.18 - Prob. 18.2ECh. 3.18 - Prob. 18.3ECh. 3.18 - Prob. 18.4ECh. 3.18 - Prob. 18.5ECh. 3.18 - Prob. 18.6ECh. 3.18 - Prob. 18.7ECh. 3.18 - Prob. 18.8ECh. 3.18 - Prob. 18.9ECh. 3.18 - Prob. 18.10ECh. 3.18 - Prob. 18.11ECh. 3.18 - Prob. 18.12ECh. 3.18 - Prob. 18.13ECh. 3.18 - Prob. 18.14ECh. 3.18 - Prob. 18.15ECh. 3.18 - Prob. 18.16ECh. 3.18 - Prob. 18.17ECh. 3.18 - Prob. 18.18ECh. 3.18 - Prob. 18.19ECh. 3.19 - Prob. 19.1ECh. 3.19 - Prob. 19.2ECh. 3.19 - Prob. 19.3ECh. 3.19 - Prob. 19.4ECh. 3.19 - How many five-letter words can you make in which...Ch. 3.19 - This problem asks you to give two proofs for...Ch. 3.19 - Prob. 19.7ECh. 3.19 - Prob. 19.8ECh. 3.19 - Prob. 19.9ECh. 3.19 - Prob. 19.10ECh. 3.19 - Prob. 19.11ECh. 3.19 - Prob. 19.12ECh. 3 - Prob. 1STCh. 3 - Prob. 2STCh. 3 - Prob. 3STCh. 3 - Prob. 4STCh. 3 - Prob. 5STCh. 3 - Prob. 6STCh. 3 - Prob. 7STCh. 3 - Prob. 8STCh. 3 - Prob. 9STCh. 3 - Prob. 10STCh. 3 - Prob. 11STCh. 3 - Prob. 12STCh. 3 - Prob. 13STCh. 3 - Prob. 14STCh. 3 - Prob. 15STCh. 3 - Prob. 16STCh. 3 - Prob. 17STCh. 3 - Prob. 18STCh. 3 - Prob. 19STCh. 3 - Prob. 20STCh. 3 - Prob. 21STCh. 3 - Prob. 22ST
Knowledge Booster
Learn more about
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.Similar questions
- 4. Use method of separation of variable to solve the following wave equation მłu J²u subject to u(0,t) =0, for t> 0, u(л,t) = 0, for t> 0, = t> 0, at² ax²' u(x, 0) = 0, 0.01 x, ut(x, 0) = Π 0.01 (π-x), 0arrow_forwardYou buy a house for $210000, and take out a 30-year mortgage at 7% interest. For simplicity, assume that interest compounds continuously. A) What will be your annual mortgage payment? $ per year B) Suppose that regular raises at your job allow you to increase your annual payment by 6% each year. For simplicity, assume this is a nominal rate, and your payment amount increases continuously. How long will it take to pay off the mortgage? yearsarrow_forwardPlease help me answer this question!. Please handwrite it. I don't require AI answers. Thanks for your time!.arrow_forwardSolve the following heat equation by method of separation variables: ди = at subject to u(0,t) =0, for -16024 ძx2 • t>0, 0 0, ux (4,t) = 0, for t> 0, u(x, 0) = (x-3, \-1, 0 < x ≤2 2≤ x ≤ 4.arrow_forwardYour employer automatically puts 5 percent of your salary into a 401(k) retirement account each year. The account earns 8% interest. Suppose you just got the job, your starting salary is $40000, and you expect to receive a 2% raise each year. For simplicity, assume that interest earned and your raises are given as nominal rates and compound continuously. Find the value of your retirement account after 30 years Value = $arrow_forwardex 5. important aspects. Graph f(x)=lnx. Be sure to make your graph big enough to easily read (use the space given.) Label all 6 33arrow_forwardSuppose that a room containing 1300 cubic feet of air is originally free of carbon monoxide (CO). Beginning at time t = 0, cigarette smoke containing 4% CO is introduced into the room at a rate of 0.8 cubic feet per minute. The well-circulated smoke and air mixture is allowed to leave the room at the same rate. Let A(t) represent the amount of CO in the room (in cubic feet) after t minutes. (A) Write the DE model for the time rate of change of CO in the room. Also state the initial condition. dA dt A(0) (B) Solve the IVP to find the amount of CO in the room at any time t > 0. A(t) (C) Extended exposure to a CO concentration as low as 0.00012 is harmful to the human body. Find the time at which this concentration is reached. t= minutesarrow_forwardNewton's Law of Cooling tells us that the rate of change of the temperature of an object is proportional to the temperature difference between the object and its surroundings. This can be modeled by the differential equation dT dt k(TA), where T is the temperature of the object after t units of time have passed, A is the ambient temperature of the object's surroundings, and k is a constant of proportionality. Suppose that a cup of coffee begins at 178 degrees and, after sitting in room temperature of 61 degrees for 12 minutes, the coffee reaches 171 degrees. How long will it take before the coffee reaches 155 degrees? Include at least 2 decimal places in your answer. minutesarrow_forwardDecide whether each limit exists. If a limit exists, estimate its value. 11. (a) lim f(x) x-3 f(x) ↑ 4 3- 2+ (b) lim f(x) x―0 -2 0 X 1234arrow_forwardcan you help me solve this question and show workings pleasearrow_forwardhow could the bar graph have been organized differently to make it easier to compare opinion changes within political partiesarrow_forwardketch a graph of the function f(x) = 3 cos (표) 6. x +1 5 4 3 3 80 9 2+ 1 -9 -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 -1 -2 -3+ -4 5 -6+ Clear All Draw: пи > Next Questionarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
Elements Of Modern AlgebraAlgebraISBN:9781285463230Author:Gilbert, Linda, JimmiePublisher:Cengage Learning,
Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Elements Of Modern Algebra
Algebra
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Cengage Learning,
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
What is a Relation? | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=hV1_wvsdJCE;License: Standard YouTube License, CC-BY
RELATIONS-DOMAIN, RANGE AND CO-DOMAIN (RELATIONS AND FUNCTIONS CBSE/ ISC MATHS); Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=u4IQh46VoU4;License: Standard YouTube License, CC-BY