想詢問關於系統的觀察性的問題 討論系統的觀察性時 只需討論C矩陣對應喬登方塊的第一行不為0向量即可 但為什麼不會限制特徵值為1時不可觀察 左圖是我的算式，右圖是我對觀察性的理解

X₁₁) = Ax (+) Y(t) = (x(t) [×+ ] [ 6 ] [ 7 ] + BU X₂(t). X₁(t)] 不相干 git) = Cete Xro) At y(t) = [C₁ C₂] X₂(t) t == (C₁ (X₁ (0) + X2 (0)) + (2 X (0) e * = qe² X110), X210)無限多組解

想詢問關於系統的觀察性的問題 討論系統的觀察性時 只需討論C矩陣對應喬登方塊的第一行不為0向量即可 但為什麼不會限制特徵值為1時不可觀察 左圖是我的算式，右圖是我對觀察性的理解

X₁₁) = Ax (+) Y(t) = (x(t) [×+ ] [ 6 ] [ 7 ] + BU X₂(t). X₁(t)] 不相干 git) = Cete Xro) At y(t) = [C₁ C₂] X₂(t) t == (C₁ (X₁ (0) + X2 (0)) + (2 X (0) e * = qe² X110), X210)無限多組解

想請問9-27和9-28的第二小題🙏

E 9-27 LO (12 Determining the Revaluation Surplus An independent appraiser determines that the fair value of a set of machines in Riga Company is labom 1200 €40,000 at the end of 2022. At that time, the carrying amount of these machines is €20,000 (cost: Sulev sdi gnt €70,000, accumulated depreciation: €50,000), with a useful life of 10 years, and residual value of ob vily €5,000. Shortly, Riga Company decides to apply revaluation to the machine. Help Riga Company to vino ziggs record the revaluation surplus. E 9-28 LO 12 Revaluation of Plant Assets Merody Company acquired equipment on January 1, 2021, for €60,000. This equipment is being depreciated on a straight-line basis over its six-year useful life. There is no residual value at the end of the 6-year period. The appraised value of the equipment approximates the carrying amount at December 31, 2021. On December 31, 2022, the fair value of the equipment is determined to be €50,000. Merody decides to elect to value this class of equipment using revaluation model. Required: 2921019x3 3619 1. Prepare the journal entries for 2021 related to the equipment. 2. Prepare the journal entries for 2022 related to the equipment.

可以幫我完成這五題嗎 拜託急需

18:32 2. colenglish.edu.tw + 要翻譯網頁嗎? 從偵測到的語言翻譯為中 文(繁體) 選擇題 1. People have lived in this valley since ancient times. ancient symbolic 2. Millions of Africans were sold into 3. It's | - Select - misfortunes. representative 4. They were accused of inhumanity in their - Select - of the hostages. 5. Disney World is one of Florida's major tourist - Select - to take advant unfair Vo) 4G+ LTÉ ← 字彙-Quizlet龍騰B1L6 ||| 2 all 56% 翻譯 S : < ★

哪一個段落沒有主題句？ 我覺得是第一個，對嗎？ 要怎麼替這個段落寫出主題句呢？

2 Despite different home cultures and countries, international students' main overall motivation is the desire get out on their own, to carve out a new direction in their lives. "Foreign students" do not casually abandon the comforts of family and cultural ties; they have done their homework on Canadian schools. All their preparation, though, cannot prepare them for the loneliness and ongoing difficul- ties they face, from cold winters to financial issues related to the higher tuition fees they must pay. Some students, though, emigrate to escape those same tight- knit families and bonds that others find so painful to leave behind. A Macleans "On Campus" report notes that family expectations may be opposed to students' visions for themselves and lead them to reject accepted values and career paths in their hometowns and countries. Csilla, a web-design student at Waterloo admits, "I was always supposed to enter my family's restaurant business in Budapest, but I felt suf- focated even working part-time as a server. Web design is my passion, and I wanted 12: CAUSE OR EFFECT [- a completely fresh start, something that is completely my own ("International Stu- dents"). Finding independent paths to their own dreams is the key here, whether students choose those paths as a result of personal ideals or as a reaction to pre-set future plans.

以下是心統的題幹與問題 想請問第以下兩題是否有計算錯誤？

1. Any of you who have listened to children tell stories will recognize that, unlike adults, they tend to recall stories as a sequence of actions rather than as an overall plot. Their descriptions of a movie are filled with the phrase "and then...." An experimenter with supreme patience asked 50 children to tell her about a given movie. Among other variables, she counted the number of "and then..." statements, which is the dependent variable. The data follow: 18 15 22 19 18 17 18 20 17 12 16 16 17 21 23 18 20 21 20 20 15 18 17 19 20 23 22 10 17 19 19 21 20 18 18 24 11 19 31 16 17 15 19 20 18 18 40 18 19 16 簡單翻譯:心理學家請小孩描述電影情節,並記錄他們使用「然後」的次數,50 位小孩的次數 如上。

左邊紅框處不是應該放summationX*×Y嗎為何是summationXY阿？

例題 2017 另一種形式的衡量誤差 (10%) The parameter ß is defined in the model Y₁ = BX + u₁, where u; is independent of |X₁, E(u₁) = 0, E(u²) = 0², the observables are (Y₁, X₁) where X₁ = 2 random measurement error. Assume that v; is independent of X and Vi Uj. Also assume that X; and X are non-negative and real-valued. Consider the least-squares estimator for B. "Jon at Y ni 10713 2. (5%) Find a condition under which ß is consistent for ß? 1. (5%) Find the probability limit of ß, expressed in terms of ß and moments of (X (Xi, Vis Uj). 《108 台大經研》 ΣX; Y; ΣX² 《解》 | 已知 X = X*v, 將 X* = X/v 代入得] Y = BX* +u = BX/v+u。此爲無截距模型, 故 2X* ( ) Σ₁ X₁Y;/n_p_E(XY) B 將 X = X*v,且 v - X*, v lu 代入可得到 BP B ΣX²/n i=1 ¸E [(X*v)² /v]_E[X*vu] E(v) = BE(v²) E(X²) U = (S), X)-(SA EXB- + u V E (X²) atlo) co Beta, u) + Cov (Beta, e lo) 1mm wod2 (2) € Xv₁ and v₁ > o is 4)] E(X²/v)_ E(Xu) = B- E(X²) E(X²) 区一这三 E[(X*)²] E(v) __E(X*)E(v)E(u) + = E[(X*v)²] E [(X*v)²]E[(X+)²] E(v²) E[(X*)²] E(v²) = ß ↔ E(v) = E(v²) + +

想問15~17題 謝謝

ments, Inc. don E14 7PL use, mpact 10. you and Questions 14-21 refer to the following article: a few large pistons 14. 15. many small ones, an Australian inventor claims to have built an engine arises from the friction and vibration in conventional engines. The new By. that minimizes the wear and tear design ensures that fuel is completely burned. should produce virtually no toxic exhaust, on low-grade fuels such as coconut oil. The "split-cycle engine," as it is known, will next be tested independent researchers at several universities. The inventor, Rich Mayne, and his colleagues hope that a leading car company will consider the engine in a prototype "car of the future" that is being developed 18. 17. 19. the support of the Australian government. 21. 14. A replacing B replaced C to replace Dreplaces 15. A by B with Ⓒto D as 16. A they B that those who D 16. 20. 17. A They B There BD A He It D 18. (A) B or C and D therefore CA moreover 19. A by B with from (D) at 20. A B C D B 21. (A) B C D to use using it will use used from by of with can run

求詳解，感恩

1 2. 3 4. D) Basically, they go on voyage after voyage in search of an immense treasure buried somewhere by the King of the Pirates, Gol D. Roger. B C 閱讀測驗1 There he flies, turns, lands and—to da- a disaster is saved, by Superman. “Come on,” you roll your eyes. “That's NOT real.” But admit it -we LOVE superman. Since the debut of the prototypical superhero Superman in 1938, stories of various superheroes have dominated American comic books and crossed over into such other media as films and animations. Versatile as these super characters may be, they do share certain traits. We know the double-life secret that Peter Parker is Spider-man, Bruce Wayne the Batman, and Clark Kent the Man of Steel. The secret identity has a civilian job while the “super-me” puts on an eye-catching costume, or custom-made accessories like Wonder Woman's bracelets. We are concerned that the bad guys play tricks so as to hurt these protectors. Fortunately enough, our superheroes normally have a base to go for “restoration” to. The Batcave has everything the Batman needs. Isn't that great? Furthermore, these super icons may have some backups and do not always have to work independently. The Fantastic Four or X-men team up as they have common origins or sponsors. These super teams are like a marvelous circle. Nevertheless, there are downsides being a superhero. Credits are not always given as the Batman and Spider-man meet with public skepticism or outright hostility. A superhero may even lose control as the Hulk has an issue with his violent alter ego. We love to see the superheroes think big and achieve big. They for sure reflect what we are and what we want to be. In summary, superheroes are popular and iconic because they each represent a large part of a society's traits and values. Everyone can relate to at least one hero and villain, because those heroes are designed to show the best parts of society, and the villains represent the worst parts. 5 What can we say about the author's tone? (A) Angry. (B) Formal. (C) Harsh. (D) Relaxed. 48 主题5 藝文世界

第二題的d的積分範圍要怎麼設

6 Kx, lo, 14) 1. (10 points) How many even numbers can be formed from the digits 9, 1,4,5,6, and 9 if each digit can be used only once? 2. (50 points) Let X and Y denote the lengths of life, in years, of two components A and B, respectively, ş! x2 in an electronic system. If the joint density function of these variables is 64 0<x<1-ycl EX,Y) Rx hy 0 < x <1.0<x<1-x: f(x, y) = elsewe jey.301-4)*84f CX74 3 Rxdy * 了 1' Jay You Determine the value k; FED ECX) = 86 x 6xci->)dy cy) 3(1-2) ² (b) Find the marginal distributions, expected values, variances, and covariance of X and Y; dy= 1 (C) Determine whether X and Y are dependent or independent; X(d) Find the probability that the length of life of component A is less than that of component B; X(e) Find the probability that the length of life of component A is greater than one year, given the ar length of life of component B is equal to two year. xcy 1313. (10 points) The probability that a flight departs on time is 0.3; the probability that it arrives on time is 0.3; and the probability that it departs and arrives on time is 0.1. Find the probability that it arrives on time, given that it did not depart on time. ex oin 4. (20 points) The waiting time, in hours, between successive speeders spotted by a radar unit is a continuous random variable with cumulative distribution -8x76 / le = 1- e 11-e dx x ZO; dv=e 0, f(x) = f'(X) = x < 0. 8 e V= 1 84 (a) Find the probability of waiting less than 10 minutes between successive speeders; hind the wyerane waiting time between successiye speeders spotted by a radar unit. 013-0il u=X -8X -81 -8% ge