有高手能幫忙解答嗎

2. Let P be the set of all polynomials with integer coefficients and Pn = {ƒ € P: ƒ has degree n} for n € N. Prove that Pn and P are countable.

想問12題

Coined in 2020, the term "revenge travel" stems from a feeling of wanting to break free from the monotonous life of lockdowns. After being confined in their homes for months due to the fear of the highly contagious disease and subsequent worldwide lockdowns, many people are more before the pandemic, It appears that now, rather than feeling afraid and worried, people are just 11. to travel even 12. lockdowns. With this mindset, the tourism ready to get back at something; the year 2020 industry has greatly bounced back right after the COVID wave starts declining. Many people want to go somewhere so eagerly as they have felt imprisoned for so long. Take India for example. Many people still go traveling out of sheer frustration and the feeling of annoyance from August to October, generally considered the off-season for travel because of unfavorable weather conditions. 13. the freedom of traveling is being celebrated, everything comes at a price. That is, revenge 14. months of lockdown, which breaks the chain of COVID-19 spread., travel has the potential to As tens of thousands of people flock to popular scenic sites, it is crucial for everyone to observe social 15. the chance to be infected will be the last thing people expect. distancing and mask wearing. Although these new norms can be quite disturbing, in the post pandemic era, people have to be prepared to change their behaviors. 11. (A) compelled A 12. (A) lost to $₁5 2 (B) ambitious (C) reluctant (D) desperate (B) occupied with (C) intended for (D) engaged in

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.

算不出來

π 項 題設 0 ≤x≤元且 x≠- 2 sec² x = 2k tan x 有兩個根,則此兩個根的和為? ns: E|N , k> 1 是一個常數。已知三角方程式

想問這題的C C選項指的不應該是說 買賣NFT比想像中複雜 但文中所指NFT的買賣那麼複雜，那為什麼不是錯的勒

第 39 至 42 題為題組 As we progress further into the digital age, new terms and technologies seem to pop up everywhere. The latest of these is "NFTs" or non-fungible tokens. If something is fungible, it means that it is able to be replaced by an item of identical value, such as currency. Therefore, a non-fungible token cannot be interchanged; it is unique. NFTs are linked to the blockchain-the digital database that supports online cryptocurrencies like Bitcoin and Ethereum. Let's take a deeper look at NFTs and how people can buy, sell, and trade them. In simple terms, NFTs are one-of-a-kind digital works of art. They can take the form of GIFs, tweets, virtual trading cards, images of physical objects, and more. NFTs tend to attract investors who believe in the future of blockchain technology, and who are willing to spend top dollar to obtain a new form of digital currency. For example, Jack Dorsey's first tweet sold for $2.9 million, a video clip of a LeBron James slam dunk sold for over $200,000, and a decade-old "Nyan Cat" GIF sold for $600,000. Clearly, the NFT market is something to be taken seriously. So, the next question is: how does one participate in it? modi naging dato Basically any digital image can be purchased as an NFT. But before buying one, there are a y things to bolet gold sin few things to consider. You need to think about which marketplace to buy from. You also need to b bount itnorn s. slagg 21.05 think about what kind of digital wallet you'll be using to store the NFT, and which type of gos, of 10 and ab cryptocurrency you'll use to purchase it. The process of selling your NFT will vary based on which Dead orie ni einshins Imp leve moitoolsh marketplace you use. However, the process is simple enough-first, you'll upload your content to anthow ad of Lite to 2012 63 ele ning rolls of abno the marketplace to turn it into an NFT. Then, add details about the work and set the price. NFTS bengoof mi cont long as they have may sound confusing, but anyone is able to take part in this new digital market as a digital wallet and a little bit of cryptocurrency. zulli 120d so ausu gaivollot sa to doir'W.20 con cach these All th Ver DHE KU A

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

為何194題不選D? 謝謝 ans:C

200.答案(D) 旅行社針對書的 Questions 191-195 refer to the following advertisement, online shopping list, and email, Make a statement with Dulex Your wall is a blank canvas beckoning your artistic Muse to come out and play. Visit our website at www.dulex.ca/diy/colour and browse through hundreds of colors. Select your are three times larger than usual and come with re-adherable backing, which allows you desired colors, and free samples will be delivered right to your doorstep. Our color samples to visualize how colors match with the interior. Once you make your final decision, simply place your order online, and receive the paint of your choice within 3-5 business days, or pay a little extra to have it delivered overnight by our express service. Notice: Colors on screen may vary depending on your screen settings and resolution. If you are unsure of a color, we recommend ordering several samples in similar shades. Order Number: 8818 Customer: Aaron Padwee Price Item Size Quantity Island Green n/a 1 $0.00 DX 347 Emerald Green n/a 1 DX 348 $0.00 Pine Green n/a 1 $0.00 DX 360 Egypt White gallon 5 DX 112 $150.00 Tax (6 percent) $9.00 Express shipping $15 Total $174.00 Checkout

為何194題不選D? 謝謝 ans:C

200.答案(D) 旅行社針對書的 Questions 191-195 refer to the following advertisement, online shopping list, and email, Make a statement with Dulex Your wall is a blank canvas beckoning your artistic Muse to come out and play. Visit our website at www.dulex.ca/diy/colour and browse through hundreds of colors. Select your are three times larger than usual and come with re-adherable backing, which allows you desired colors, and free samples will be delivered right to your doorstep. Our color samples to visualize how colors match with the interior. Once you make your final decision, simply place your order online, and receive the paint of your choice within 3-5 business days, or pay a little extra to have it delivered overnight by our express service. Notice: Colors on screen may vary depending on your screen settings and resolution. If you are unsure of a color, we recommend ordering several samples in similar shades. Order Number: 8818 Customer: Aaron Padwee Price Item Size Quantity Island Green n/a 1 $0.00 DX 347 Emerald Green n/a 1 DX 348 $0.00 Pine Green n/a 1 $0.00 DX 360 Egypt White gallon 5 DX 112 $150.00 Tax (6 percent) $9.00 Express shipping $15 Total $174.00 Checkout

51題，解答九分之一那邊，為何是cot3x的三次方而不是一次方，為何是九分之一不是三分之一？

Finding an Indefinite Integral In Exercises 49–58, find the indefinite integral. Use a computer algebra system to confirm your result. 49. cot 2x dx 50. tan Soor foset X X sec4 4 4 dx 51. csc4 3x dx 52. cores X X cot? csc4 – dx 2 2

有人可以幫我解以下兩題嗎🥺 (1) As F&B Director, you are responsible for estimating F&B revenues and expenses. Perusing HCC Data Set's (2022) first wo... 繼續閱讀