大一公衛系微積分，求第二題解

公衛系 微積分期末考 (28/12/2018) 1. Use the Laplace transform to solve the differential equations. (1) j(t)+2y(t) = x(t), y(0)=1, x(t)=10, t20 (20) (2) Intravenous glucose is a treatment. Disposed at a fixed rate k grams per minute inputs into the blood, while blood glucose will be converted to other substances or moved to another place, at a rate proportional to the amount of glucose in the blood, the proportionality constant is a (a> 0), the initial amount of glucose in the blood is M. A. Find the variation in the amount of glucose in the blood (15) B. Determining the equilibrium, the amount of glucose in the blood. (5) = 2. SI Epidemic Model : The size of the population, n+1, remains fixed. Let i(t) be the number of infectives at time t, and let s(t) be the number of individuals who are susceptible. Given an initial number of infectives iO), we would like to know what will happen to i(t). SI Epidemic Model is described by the differential equation. di(t) = k·i(t).s(t) ......(5.1) dt i(t)+s(t)=n+1 i(0)=i, (1) Solve this differential equation of the SI Epidemic Model (5.1). (10 h) (2) What is the peak times t of the epidemic spread? (10) 3. Consider the Two-compartment physiological models and is shown in figure 1. C1 (t) represent the drug concentration in the first compartment and C2 (t) represents the drug concentration in the second compartment. Vi and V2 represent the compartment volume. Use the first order linear differential equation general solution to solve the C1 (t) (20 ) and use the Laplace transform to solve C2 (t). 【20 分). | 世」!()

61的 a 謝謝

61. Under certain circumstances a rumor spreads according to the equation 1 p(t) = 1 + ae -kt where p(t) is the proportion of the population that has heard the rumor at time t and a and k are positive constants. (a) Find lim,-- p(t). a

求解！！！急！！！

r 50. WATER POLLUTION A circular oil slick spreads in such a way that its radius is increasing at the rate of 20 ft/hr. How fast is the area of the slick changing when the radius is 200 feet? EXERCISE 50

不知道這個怎麼算🥲

Section 3.5 39. Do the graphs of the functions in Exercises 39-42 have any horizontal tangents in the interval 0 5x = 27? If so, where? If not, why not? Visualize your findings by graphing the functions with a grapher. 39. y = x + sin. ANS: Yes. At x = TT

請問可以幫我看一下第三題嗎？

Question 3: expand (a+b)^n where n is positive integer Question 4: expand sin(a+b) Question 5: expand cos(a+b) The deadline is 18:00 2021/9/22

這幾題不懂求講解

m 第8章組織變革 X 逢甲人資訊服矛X 逢甲大學課程 X 由 影/加Line沒X 器容只會低頭X 日 聊天 | Dcard X Google Keep x + X < > a ilearn2.fcu.edu.tw/mod/quiz/review.php?attempt=806398&cmid=734107 @ : : 理應用程式 f Facebook Twitter @ Instagram W Wikipedia OneDrive * Xreading ol Outlook 24 PChome - Dcard in iLearn F MyFCU 閱讀清單 IIII 楊辰浩 試題5 下列有關變形蟲組織的敘述,何者正確? 完成 單選: 得分 0.00/配 分1.00 a. 此組織類型不需設置管理小組 罕標示試題 b. 是典型的官僚組織 C. 是依照權變觀點設計的組織型態 d. 是同心圓組織的一種 ||| 下午08:35 11 ID 199+ 2021/6/6 (22)

想請問45題怎麼算

-苹 multiplica 彷?z衝 rotates a vector x in the xy-plane 出rough an as才 沁Vhat is the effect of multiplying x by 47? Explain yougr劑 Oning. Cfon of (g,2,c) 45. Find the St AA for the lin 了: 和2一 2forwhich |章 46. nd 負e standard matrix A for the linear transtformation 7 人 一 3 forWhich eat tranSformation 3 proyecfion 0 I 2 1 1 一3 1 gf 0 三|一3[, 7器國 1 張 F 全 Droyecflon 0f 明 10 則 8 晴 47. _Let x) be a nonZero column vector in 及, and suppose that 7了: 和一和 is the transformation defined by the formula

請問有人會這部分嗎謝謝🙏

the correct order fo Hefinitions- loit and use: 7esgozerees 上 曙 le_(CSEHDLUE) progressing: UUUE ce十_(BDTUGE) iece of work or Project (EAWKTMRO) (LSIKLS) 乙 ances-- 妃 4 S革 和 主人記 gate he always Jets me uld meet fo gefan _(G 二 ortsupPy fo work 也is pressing- rything yourself. ef. UpJe. fform Of words 、 Business co mmunication 1 Complete the conversation with thewords from helist 同計 方 diygJIz lse 5e7r jpZ7TES of擴 goe7e CIO7e7I4D/ 一jgFPsrcheck 4e記 IPpdqfe jie Fefs 7ed YO7Z7E 7C With 說 Right, so everything 5 4 時寢 tion. Whats next on the list? Ah yes, 位 before Iforget Melinda, can you contact the car / % AA hire people for the VIPs? fer notto詮 that's Melinda Td Pre Tm really busy with the caterers' Henry Oh really? Whats 戰記加計 Melinda The usual Problems Wi mlenu changes- which is whyIcant take anything else or Henry, As Melindazs busy, 1w 了at sormmething you can 3 he WWW0-,Martin? Martin Sure, no problem- Henry Thanks, Martim. Martin You'Te welcome. 9 Henry And《uUM&OVo. we with replies to the invitations, Rebecca? W 國說BY Rebecca Tvesent them outbut 5 人 vwaitng forIeplies from 70 people. Henry Thatmany? Can 6 theyTe coming? (le cx Rebecca No,Ican manage- 可ling them individuauy over the next two days. Thanks, Rebecea. OK Ralph. Can you Hen 3 ) hon briefing the media? Ralph 8 so good. Lve sent outapress release and afew journalists have already confirmed- Henry Good,so” 路6 人weall know what weTe doing. Melinda is dealing with the caterers, Rebecca is handling the invitations, Martin is handling the car hire firm and Ralpt has volunteered to deal with the media. OK, 放 that's everything, 10 |@峽againinaweekt review progTess. CC OK.LTddoitbut (多 1 help you check和it

B部分求解

A 同踢3Circle the correctWOIOCS y is doing Very well. 目ls shrinking) fast. (Fewer and fewer /了ore and mor (increasing / df are shopping or wat&hirt health awarenes5-一一 3 leatout more often these days as the-qsalty of food in many restaurants has, gotten worse). 4 Unhealthy food choices such as fast food are causing health problems_llke_obe ity to become (less common / jmmore widespread. B8 Complete the sentences-ee cribing trends. Use your own ideas. has decreased in the last few yes 1 The number of people who has improved over time. 2 3 4 These days, fewer and fewer people is/are becoming less common nowadays,. is/are getting richer. has become more widespread inthe lasttte!際 5 6 The problem Of C Work with a partner. Do you agree with your partner's statements in B? Why or why not?

有人可以麻煩幫我看有沒有寫錯嗎🙏🙏

及 < 時 「 an 廬 1 當 7 etween JUN7 / 0 / 哆 Wef ffice- ec 4 toO expi t/ was/ GST Tgl 0 hours 。eGsSA7Gr / tha 擬 es ld 計 ee CO IN nmversation with the 2 Now complete 1-6intheco ” questions a-ffrom 1 Kafga Hello/ Katja speaking- Niki Hi Katja. 此5 Niki. Kafga Oh,世 Niki You know fheman wemet yesterday? Kafja Pau? Niki Yes. 以 Katja Bicknel. Paul Bicknell. Niki Thanks.2 ta SorryIdont havett ki That's great., Katja Yes, sure. Itsp dotbicknellat ... liki Sorry, 4 atja Pdot bicknell 說 2 ell at GSI dot org. Tas in Inmdia. Thanks.€ GSIis upper case. 9o thatspdotbicknell at G 加 tGSIdot org. butIdo have his email.