難題，想挑戰的大神幫個忙，最佳解答 我想問紅筆那邊（解答的第一步）為什麼是設四氧化二氮為1，這樣寫的意義在哪

計分方式: 選題:昭土 作答 was it our planet, but flow firm a+b=2 ) 定溫、定容下,反應 NzQ4(g) 2NO2(g)達平衡時總壓為 2 atm, 測得 N2O4 之解離度為50%,則此反應的 K值為何? (A)0.139 (B)0.72 (C)1.33 (D)2.67 (E)3.33 N2042NO22 B 一号/Q a N 点 a=2 2 +2X一 -α HX mol ) 反應 A(g)B(g) + C(g)。定溫下,在1升真空容器内放入2莫耳 反腐,達平衡時 A(x)的分解率為50%,同溫下,在另一個1

正合方程式的問題（工數） 有點毫無頭緒😵‍💫 求解

Section 1.3 Problems 測試是否為正合 In each of Problems 1-5, test the differential equation for exactness. If it is exact in some region R of the plane, find a potential function and a general solution, perhaps implicitly defined, that is valid for that region. If it is not exact on any region, do not attempt a solution. 1. 2y² + yexy + (4xy + xexy + 2y)y' = 0 2. 4xy + 2x + (2x² + 3y²)y' = 0 3. 4xy + 2x²y + (2x² + 3y²)y' = 0 4.2 cos(x+y) - 2x sin(x + y) - 2x sin(x + y)y' = 0 tlsx9 ² +y+ (3y² + x)y' = 0 5.

幫我解答全部題目答案，因為我全部都不會

9 2108 Bunun DAL jo y w S M uu un IN Os 31 3 10 6.95 CINGO TAL •ung 1 can may 42-4 英語科 第 4 次複習考 93 82 L1-2 、單題:請依文意選出一個正確或最佳的答案。 (1~5題每題2分,6~15期每週3分,共40) () 1 Peter in the evening. (A) watches TV ( plays soccer (C) does exercises D uses computer () 2 There is little rain this summer, so the water problem now. ( facing D) working 3 There was something wrong with my took me to the dentist. (B) ear A tooth (C) eye (D) leg () 4. Which is your favorite running or football? (B) tricks (D) sports we are (A) playing (C) saving A things (C) stories () & Does the washing machine (A) save () 6 Ken. every day. (A) does (B) be () 7. Many people think () 14 1 three times a week. (A) always () 9. The girl (A) have EST TW ? I can't turn it on. (B) play (C) change (D) work play the piano very well. He practices it day. It gives you power to start a new day. (A) breakfast (B) lunch (D) menu (C) dinner () & My brother is late for school. He is late at least so my mom (C) do (D) can is the most important meal in a (C) seldom (D) never (B) often a lot of make-up on her face. (B) has (D) is WWW MAREMUDAN A 1922 m A 20 on 20111014 (B) does (D) hasn't be late, so don't wait for me. (C) is having () 10 Sam won't go to the party tonight because he is with his work. (C) tired (D) thick (A) hungry (B) poor son. He is eleven. His brother Mike is. () 11 Ted is my nine and his sister is five. (A) only (B) first ( ) 12 John, Kate's brother, (A) speaking (C) speaks () 13 My wife can cook, but she (A) can't (C) doesn't (C) very (D) small both French and German. (B) speak (D) spoke She seldom cooks. (A) need (B) may (D) have to (C) should () 15 It's time for the first class. Tim isn't here. He comes late. (A) never (B) already (C) always (D) enough 二、題組:請依所附的短文或圖表,選出一個最適當的答案。 (每題3分,共60分) (16~20) Felicia is a housewife. She 16 get up early and prepares breakfast for her family. Then, she drives her children. to school. After that, she goes back home to do the housework. 17. She cleans the living room, kitchen, and tidies the bedroom. In the afternoon, she goes to college and has some () 16 (A) have (C) have to () 17 ( children. (C) kid's ( 18 ) there have (C) there are () 19 (A) this (C) these () 20 A never (C) seldom English lessons. Then, she picks up the children from school and makes dinner. It's hard work, but 18 some good things. After her husband, Abel, comes back, he looks after the children. until they go to bed. During 19 hours, Felicia 20 goes shopping or sees a movie with her best friend, Nina. She enjoys these free hours. (21-23) 100 el 6 3 6 M 22 M ) 21. What is a tragedy? (B) has (Di has to (B) children's (D) child's (1) there has (D there is 《背面有試題 4-1》 (D) an (B) ever (D) usually 40 (A) A bad experience. (B) A difficult dish to make. (C) An easy thing to do. (D) A favorite kind of food. () 22 Which is true about the reading? Eddie invited his friends to his tasting party last Saturday. He worked hard in the kitchen and tried baking the cookies several times. However, it was a tragedy from the beginning. First, only two of his friends came. Eddie invited twenty! All the others were either sick or busy. As soon as Cindy and Mandy arrived, it started to rain heavily. Eddie set the party in the yard. When he hurried to take the food and drinks in, he fell off the stairs and hurt his knees. He felt bad about losing face in front of the girls. Then the girls tried some of his cookies. They made a face and said the cookies were INTERESTING! Eddie didn't understand how cookies could taste interesting. He tried one himself and knew right away. His chocolate cookies were not sweet. They were salty. He mistook salt for sugar. salty 7-120 college N Peo (A) Many of Eddie's friends came to his party. (B) Eddie had an outdoor tasting party last Sunday. (C) Cindy and Mandy didn't like Eddie's cookies. (D) Eddie put too much sugar, so his cookies tasted strange. 23 Why did the girls say Eddie's cookies were interesting? (A) The cookies looked interesting. (B) The cookies tasted yummy. (C) They wanted to have more of his cookies. (D) They didn't want Eddie to feel hurt.

想問第3格要填什麼？

II. 綜合測驗:15% The Marshmallow Challenge is a popular team-building exercise. In this challenge, groups must work together to build the tallest structure that can support the weight of one marshmallow. __ 1.__ only dry spaghetti, tape, string, a marshmallow, and 18 minutes to finish the challenge, the teams must work quickly. The Marshmallow Challenge has been 2. conducted with architects, lawyers, managers, and children. In one study, the group built the highest structure were architects. However, children performed better than the other adult teams. 3. had been Why did children do so well? First, they worked quickly with given to them. The adults spent more time planning, so they had less time to adjust their designs. Second, children collaborated to understand 4. to build the tallest structure. Adults wasted time 5. a group leader. In order to solve problems, we must collaborate and try new ideas. The Marshmallow Challenge helps people do that.

求解

字尾是「子音+ y 則去y加ied 字尾是「母音+ y」,則只加 ed 字尾是「短母音+ 子音」,則重複字 尾,再加 ed 喜歡) study(讀) try(試著) cry(哭) enjoy(喜愛) play(玩) stay(停留) clap(拍手) wrap(包) jog(慢跑) liked studied tried cried enjoyed played stayed ➡ clapped wrapped ➡jogged 2. 動詞字尾是無聲子音[p]、[k]、 [f]、[s]、[S]、[t]等,加 ed, 則 ed念[],如:talked [takt]、 helped [helpt]、laughed 4 一般動詞過去式的句型 [left]、watched [watft]。 3. 動詞字尾是母音或有聲子音, 加 ed,則 ed念[],如: played [pled]、 carried [kærid]。 寫出下列動詞的過去式,並在[ ]內寫出 ed的發音。 1. bake bakal [d] 2. call called 4. dance dancies [] 5. jog [] 3.enjoy 6. visit jogged [ ] _enjoyed [ ] Visited [1

不會

字尾是「子音+ y 則去y加ied 字尾是「母音+ y」,則只加 ed 字尾是「短母音+ 子音」,則重複字 尾,再加 ed 喜歡) study(讀) try(試著) cry(哭) enjoy(喜愛) play(玩) stay(停留) clap(拍手) wrap(包) jog(慢跑) liked studied tried cried enjoyed played stayed ➡ clapped wrapped ➡jogged 2. 動詞字尾是無聲子音[p]、[k]、 [f]、[s]、[S]、[t]等,加 ed, 則 ed念[],如:talked [takt]、 helped [helpt]、laughed 4 一般動詞過去式的句型 [left]、watched [watft]。 3. 動詞字尾是母音或有聲子音, 加 ed,則 ed念[],如: played [pled]、 carried [kærid]。 寫出下列動詞的過去式,並在[ ]內寫出 ed的發音。 1. bake bakal [d] 2. call called 4. dance dancies [] 5. jog [] 3.enjoy 6. visit jogged [ ] _enjoyed [ ] Visited [1

啥🥲

What is the moment of inertia I for a uniform ring of radius R and mass M about an axis (perpendicular to the plane of ring) at its rim? (A) 0.5 MR2; (B) MR²; (C) 1.5 MR²; (D) 2 MR²; (E) None.

請問有人可以幫我解這三題嗎

2. The financial statements in the year 2021 and 2022, for Kosinski AG contains the following condensed information. December 31 2022 2021 Property, plant&equipment €236,500 €150,000 Accumulated depreciation (37,700) (25,000) Long-term investments 0 15.000 Inventory 35,000 42,000 Accounts receivable (net) 43,300 20,300 Cash 30.900 10,200 €303,000 €212,500 Share capital-ordinary €130,000 € 90,000 Retained earnings 70,000 29,000 Long-term notes payable 70,000 50,000 Accounts payable 21,000 17,000 Accrued liabilities 17.000 26,500 €308,000 €212,500 Additional information for 2022 is: 1. Income before income taxes for the year 2022, €98,800. 2. Depreciation on plant assets for the year, €12,700. 3. Sold the long-term investments for €28,000. 4. Paid dividends of €35,000. 5. Purchased machinery costing €26,500, paid cash. 6. Purchased machinery and gave a €60,000 long-term note payable. 7. Paid a €40,000 long-term note payable by issuing ordinary shares. Paid income taxes of €22,800 for 2022. 8. Instructions: 1. Cash generated from operations = € 2. Net cash provided by operating activities = € 3. Net cash provided by investing activities = € 4. Net increase (decrease) in cash = € @ 5. Free Cash Flow = € @ 填空题 (25 分) 159 (請依照醫目中的填空位置依次填寫答案) Ⓒ29,000 54,200 1,500 20,700 -89400

請問第45題要怎麼解🙏

45-45 Evaluate the int 43-45 Evaluate the integral by changing to spherical coordinates. 43 1 √1-x² √√2-x²-y² √√√√x² + y² xy dz dy dx Jo langsini plan zorami par orige bilo svo langoni siqu sign X (49) S² √²-² √223²23² (x²z + y²z + z³) dz dx dy 44% Sva Toni -a -√√a²-y² J-√a²-x²-y² lo smulov sd tarb wore of as broos Iasibailys (n) .12 (2 2+√4-x²-y² 45, 1³²₂ √√²=x²² √² + √²=x²=3² (x² + y² + 2²j3/2 dz dy dx blows √2-√√4-x²-y² 1001=1 onoo ori yd wolad

求解，萬分感謝🙏🙏🙏🙏🙇🙇🙇🙇

高師大附中 108學年度第2學期第2次段考高中部一年級數學科試卷 班級: 座號: 姓名: 多選題(每題8分,答錯1個選項得5分,錯2個選項得2分,其餘不給分,共16分) 1. 有一種細菌,每隔一個小時死亡2隻,剩下的分別分裂成2隻,設原有5隻細菌, 令個小時後的細菌數量為a,且6. = "net-97,n為正整數。下列敘述何者正確? (2) b₂ = 8 (3)數列(a)為等差數列 (4)數列(b)為等比數列 (1) a₁ = 6 (5)a-b=4,n為正整數。 2. 某肥皂廠商推出一種新產品,在上市前以不同的單價X(單位:十元) 調查市場的需求量Y (單位:萬盒)。調查結果如表,下列敘述何者正確? X(十元) 8 9 10 11 12 ¥ (萬盒) 11 12 10 8 9 (1) X 的變異數為2 (2) X 和Y的相關係數為0.8 (3) Y對X的迴歸直線的斜率為0.8 (4) Y 對 X 的迴歸直線通過點(10,10) (5)若單價定為150元,預估市場的需求量有6萬盒。 二、填充題(配分如下表,全對才給分,共 66 分) 格數 1 2 3 4 5 8 9 10 11 12 6 7 38 得分 7 20 26 32 14 43 48 52 60 63 56 1. 有兩個等差數列(〉、〈br〉的前n項和的比為(2n+4):(n-1),則+3 bo+b₁4 2. 設數列(a)之首項a =1且a =a+6n²+1,n為自然數,則一般項a=. 3. 已知數列(a)的前n項和Sh=2a-2020,n為正整數,則前5項和S= 1 1 ++ 1 27-1 則n的最小值為 若|2-|<- 4. 設等比級數 S. =1+2+-+- , 248 1000 5. 某人欲參加郵局教育儲蓄存款,年利率6%,複利計算,若每年年初固定存入 10000 元, 則第 10 年年底期滿後,結算本利和有____元。(已知1.06 約1.7908) 6. 某地區統計其三年來的人口成長率分別為60%、20%、10%,則此地區這三年的 每年人口平均成長率為何?答: 7. 老師實施分組教學並對兩組同學進行測驗,兩組的分數如下: 第一組 30 人,平均分數 70 分,標準差5分; 第二組 20 人,平均分數60分,標準差 10 分。 若將這兩組學生成績合併,則 分(用根式表示)。 分。(2)新的標準差為 (1)新的算術平均數為 253 13 66