請問有更快的解法嗎🙏🏻

76 單元9 二維數據分析 3.某次體操比賽,X、Y、Z三位評審對 五位選手的表現評分如右表,則試比較 X 67 X、Y評分的相關係數與X、Z 評分 的相關係數的大小為 Y 701 Z 7 6 選手1 選手2 選手3 選手4 選手5 手89 4 |手896 5. 7 8 Y₁ >Y "Mx = 2== 1-(3), 2.0-(a) 0(0) 2.0 (8) 1(A) 582= 49+6+49+64+365x1156 7255 425 1740 496 6200 212 725 1560 424 5 My = 37 5 Mz=34 5 S0x= 36+6++36+16+64-5x 1024 = 16-124 sb = 5 255 =234- 1156 5 Sxz = 42+48+424-32448-1588x5 212-1088 -28 5 5300 544 = 49+ 5+ 49+ 25 +81-54 176974 = 285- 56 5 1369 5 £55 Say= 42+ 72+42+0+72-1184x5 =248-1184 56 5 VAY 5 *55 58,782 4.散布圖中有五個樣本點:A(2,1)、B(3,8)、C(5,2)、D(5,4)、E(10,5),則去掉哪一點

可以解釋bde嗎 謝謝

Tatum 下何 ★19.在220K下,H、CHG、N2和CO2四種氣體的 PV - 與 P ICH4 nRTH (D) HC. N2 2.0 H20 PV nRT1.0 CO2 A 真 ABCD 間關係曲線如右圖所示,依圖及理想氣體定義,判斷 【2015奧林匹亞】 下列敘述哪些正確? 2015 (A)在很低的壓力下(P→0),真實氣體的性質接近 理想氣體(B)CH。在400大氣壓比在200大氣壓的 性質更接近理想氣體 (C)分子間的作用力大小: H<Nz<CH<COz (D)在較高壓力時(P>200atm), (mPV 丁 盖 電話:0200 400 600 800 1000 P(atm) PV -隨壓力增加而增大,因為真實氣體分子間的作用力所致(E)理想氣體的 等於 nRT nRT (A)分子同為吸引 PV 1,而真實氣體的 nRT 可能小於1,因為真實氣體分子具有體積。(A) 理 既不固

ABCD怎麼判斷酸鹼性~

+C Oordata) (E) HCOOH(aq) ⑤ 11. CH:COOH(aq) + HO(l) = CH,COO (aq) + HO'(aq) K=1.8×10,下列哪些變因可俯 CHCOOH 的解離度和pH 值都變小? (A) 加少許冰醋酸] (B)加2滴濃硫酸 ← (C) 加少量 CH､COONa(s) 加熱 加水。 S PHV XJ [4] (43 12 鹽類的命名與其水溶液呈現的酸鹼性無關,鹽類水溶液的酸鹼性是依據離子的水解和解離狀 況而定。下列哪些鹽類屬於鹼式鹽但其水溶液卻呈酸性? (A) Zn(OH)Br (B) A1(OH)(NO3)2 (D) Ba(OH)Cl (E) Bi(OH)2(NO3)。 @@ SUGAR S50 (C) KAl(SO4)₂ 13. 市售開心果、豆芽菜、免洗筷常用 SO,漂白劑,衛福部規定食品中 SO,的殘留量必須 0.1 g SOz 。 某生為探究免洗筷中的SO2含量,進行以下實驗:取10雙免洗筷,切成小段 kg 浸入1L蒸餾水中,浸泡2週後,過濾取澄清濾液(甲),加入0.1 M Ca(OH)2(aq) 30 mL 充分 反應後,再次過濾烘乾得0.012 g沉澱。則下列敘述哪些正確? (Ca = 40、S = 32、O = 16) (A) Ca(OH)2(aq) 為二元鹼 (B) 瀘液

請問一下這個東西到底要怎麼用、要用來做什麼的 我查不到啊啊啊啊啊啊啊啊啊啊啊啊啊

A LABQUEST'2 What is included LabQuest 2 unit Rechargeable battery (in unit) - Power adapter - USB cable - Stylus (in unit) - Stylus tether Quick-Start Guide Logger Lite computer software (optional) is available for download at www.vernier.com/loggerlite CONNECTED SCIENCE SYSTEM™ are now collecting data. You Collect button a sensor, and tap the Turn the unit on, connect Vernier Software & Technology I www.vernier.com | 888-VERNIER (888-837-6437) Warranty Information LabQuest 2- to be free from inate 15 workmanship for a period of five years from the date of shipment. 3 Collect Data LabQuest 2 Battery - This product is warranted to be free from defects in materials and workmanship for a period of one year from the date of shipment. damage to the product Warranty does not oper use. caused by abuse or LABQUEST 2 for at least 12 hours. Let your LabQuest charge adapter to your LabQuest. Connect the power 2 Charge Your LabQuest FIRST-TIME USE Vernier of the unit. battery, from the back which protects the Remove the pull tab, 1 Enable the Battery

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

求救第55題 完全看不懂他要我幹嘛

Year slenue Req) = 1932 1958 +1000 q R 9)=-1000q =74 1963 1968 COM If the price in dollars of a stereo system is given by 1000 p(q) + 1000, 1000 ² q where q represents the demand for the product, find the mar- ginal revenue when the demand is 10. 54. Profit Suppose that for the situation in Exercise 53 the cost in dollars of producing a stereo systems is given by C(q) = 0.2q2 + 69 + 50. Find the marginal profit when the demand is 10. 59. Marginal Product of Labor The output y of a manufacturing y process is a function of the size of the labor force n using the function 1990 +1000 1971 1974 = 990 197 197 19 19 1 y = kVn. The marginal product of labor, defined as dy/dn, measures the rate that output increases with the size of the labor force, and is a measure of labor productivity. (a) Show that (c) Using the a cubic f respond the rate and 200 (d) Discus descri part ( the y (e) Exp data calc ful x C(x) = 58. Money 1955-7 dy k dn an (b) How can you tell from your answer to part (a) that as the size of the labor force increases, the marginal product of labor gets smaller? This is a phenomenon known as the law of diminishing returns, discussed more in the next chapter. 56. Profit An analyst has found that a company's costs and rev- enues in dollars for a product are given by x2 C and R(x) 2x 2 5000' respectively, where x is the number of items produced. (a) Find the marginal cost function. (b) Find the marginal revenue function. (c) Using the fact that profit is the difference between revenue and costs, find the marginal profit function. (d) What value of x makes the marginal profit equal O? (e) Find the profit when the marginal profit is 0. (As we shall see in the next chapter, this process is used to find marimum profit.) A wher in bi find year (a) (C) (e) nad since

求詳解

設<ul>為等比數列,已4 =1,14=2+V5 且 an+2 = an+1 + un,n>2,則公比 - 9 r= 答案 - 20 lxd? : 2455 a Bt Mohstar a : ared de data 2 f. btay = 20 W 20 7) An= Onstance an -2.

空間向量 請問這題的選項該如何判斷？從B以下的都有點問題⋯⋯謝謝🙏

(註:外 空間向量 2 普 (2) a (3 a 證 C18 空間中有一四面體ABCD。假設AD 分別與AB 和AC垂直,請選出正確的! (多選) KA) DB · DC=DĀ? TAB · AC (B)若ZBAC 是直角,則ZBDC 是直角 (C)若ZBAC 是銳角,則ZBDC 是銳角 (D)若ZBAC 是鈍角,則ZBDC 是鈍角 (E)若AB<DA且AC<DA,則ZBDC 是銳角。 (B) AB. AC =0. (A) 5B 5C (DB-DA IL DC-DA)=0 = = (5a + AB I COA+AC) * DB. B C =0A² 16 Blibel so. = 15A I + DA A B cos BOU, + AB. DATAB. AC 707) Tbibl·loch B,C,D, 2KI AB · AC=AB · AD • (106學測) (4) \ {C) LBAC <90° 5B. DE DA > 2 DB DE DA - 30 試選出正確的選項。 . 9 2 -- 同上

這題怎麼算？ 正確答案是d.

7. 0.00 The reaction A + B is first order in [A]. Consider the following data. What is the concentration (M) of [A] after 80.0 s? S Time (s) [A] (M) 0.0 0.20 5.0 0.14 10.0 0.10 15.0 0.071 20.0 0.040 a. 04.06 b. O 7.8 X 10^-2 c. O 5.00 X 10^-3 d. 4.06 X 10^-4 O 0.01 e.

21題 教教我QAQ

Section 11.3 Angular Momentum J-s behind rmv a he ur 265 = ? a ter 30. Example 11.1: A 58.1 Iw COMP string and whirled at 18. Express the units of angular momentum (a) using only the funda- momentum of magr mental units kilogram, meter, and second; (b) in a form involving the circular path. Fir newtons; (c) in a form involving joules. marw horizontal and (b) the 19. Use data from Appendix E to make an order-of-magnitude esti- 31. Example 11.2. A stai mate for the angular momentum of our Solar System about the Max 27 the end of its lifetime galactic center. mu = 17.293 of radius 4.96 X 10' 20. A gymnast of rotational inertia 63 kg•m? is tumbling head over heels dwarf of radius 4.21 with angular momentum 460 kg•m?/s. What's her angular speed? 17.99 acted on the core, fine A 660-g hoop 95 cm in diameter is rotating at 170 rpm about its 32. Example 11.2: Astro 22. A 1.3-th-diameter golf ball has mass 45 g and is spinning at central axis. What's its angular momentum? L: 1W=0-66*(0-95) x 140x277.10 km and determin core that collapsed to 3000 rpm. Treating the golf ball as a uniform solid sphere, what's ing with a period of 4 its angular momentum? 18-3 33. Example 11.2. The s 10-598 rpm With her arms outstre Section 11.4 Conservation of Angular Momentum tational inertia is 3.5 23. A potter's wheel with rotational inertia 6.20 kg•m? is spinning (Fig. 11.6b), her rot freely at 20.0 rpm. The potter drops a 2.50-kg lump of clay onto her final spin rate? L = 6 2 x 2-1 = 12-99~13 - 2x2 22 13= 60.48)" x 2.5 W W = 2 . X z W = 20x2T 60 ²2.1 ~ 1 12.574