求解🙏🏻

7. 已知一組二維數據(x,y)=1,2,...,n。若Y對X之迴歸直線為y = 12+20 = 3/2 1 且標準差分別為Ox=1、0y=3,又X的平均數4x=3,試求: 9.9公 【解 (1)Y的平均數My。(10分) (2)X與Y的相關係數r。(10分) [配合習題 10]

求解🙏🏻

6.某次段考全校100位同學的數學成績X與物理成績Y,經統計結果得X、Y的平 均數分別為Hx=52(分)、Hy=70(分)、變異數分別為=100、3=64、且 , (x-x)(y- My) + (x2+ μx) (Y₂+ My) ++ (100-μx)(Y100-y)=2500 : (1)Y對X之迴歸直線方程式為何?(10分) 04-1 (2)若某人數學得64分,試以對X之迴歸直線方程式,猜測他的物理成績應為幾 分?(10分)當做番为食品 配合例顯

請問螢光筆畫的那兩個是怎麼弄的

求A = (4,4,16)對平面:x+y+z=21的對稱點 (A) (-2,-2,-2) (B) (2,2,14) (C) (6,6,30) (D) (-6,-6,-18) TT 正確答案:(B) r M •A' Assume that A' is the symmetric point of A in the above diagram. First, we computer, which is the line that passes through A and is perpendicular to π: x 4 y 4 Z- - 16 r: = = 1 1 Then, solving the following three simultaneous equations from r and π : x y = 0, x z = −12, x + y + z = 21 we find the intersection point M of r and π M = (3,3,15) Since M is the midpoint of AA', we have A-M A' = M - A' = 2M - A =2(3,3,15)-(4,4,16) = (2,2,14).

請問47.的D、E怎麼判斷的？

第11頁 共14頁 -3.6 46-48題為題組 請記得在答題卷簽名 自然考科 DNA是生物細胞內攜帶遺傳訊息的物質,當DNA發生變異時,會影響基因的表現進而 改變性狀/但很多生物也可以在不改變 DNA的情況下調節基因表現影響性狀,此方式 稱為表觀遺傳調控,其中常見的機制包括DNA甲基化、組蛋白修飾、小分子RNA等。 「DNA甲基化」為在DNA特定位置上添加甲基的化學修飾,當基因前端的區域——啟 動子被高度甲基化時,常會導致基因表現量較低。而「組蛋白修飾」是針對被 DNA 纏 繞的蛋白質——組蛋白,在其尾端上做的各種修飾,如乙醯化、甲基化、磷酸化等,這 些修飾會影響DNA纏繞的緊密程度,進而加強或抑制基因表現。另外,由長度約為18 也會抑制基因表現。 到30個核苷酸構成的「小分子RNA」 當應用於作物改良時,偵測表觀遺傳變異與性狀之間的關係為首要任務,其中一種用 由於每 來偵測表觀遺傳變異的策略仰賴的是近年才逐漸普遍化的「全基因體定序」 個作物的基因體序列不同,需逐一檢視不同作物在各種逆境條件下產生的表觀遺傳變 異。 表觀遺傳變異與基因變異主要的不同在於其不穩定性,由於細胞有自我修復機制,因 此表觀遺傳變異在細胞複製前、後未必能維持;此外,世代遺傳間的「表觀遺傳重組」 (epigenetic reprogramming)會重置表觀遺傳的分布,使得親代的變異未必能完整保留 到子代。 應用表觀遺傳在作物改良上需特別確認變異在跨世代間的一致性;植株進行處理後所 產生的表觀遺傳變異,是否能在性狀植株或甚至下一代重現,以確保有效的作物改良。 目前主流的基因改造工程,在食品、環境、與生物安全上有著錯綜複雜的影響,僅透 過調控基因表現以達到性狀改良的表觀遺傳,更能消除大眾對於作物改良的疑慮。現 今對於表觀遺傳的研究資料已經越來越多,在植物面臨逆境時,表觀遺傳能有效且迅 速地幫助植物適應環境。在未來環境更加極端的情況下,生產作物將會面臨更嚴峻的 挑戰,如何繼續維持高產量,成為農民及研究者必須解決的問題之一。 46. 由文中可知,作物的表觀遺傳調控與下列何者相關? (A)基因突變 (B)遺傳工程 (e) 異種雜交 (D)基因表現的調控 (E)染色體數目異常 47. 文中提及表觀遺傳調控中「甲基化修飾」可出現在細胞中的哪些分子或構造上?(應 選2項) (A)醣類 CD (B)脂質 (C) DNA DHD) 核糖體 (E)蛋白質

請問19為什麼不能選C或D？謝謝

Britain celebrated the Coronation of King Charles III in May 2023. This grand event, the name of which is 16 from the Latin word "corona" meaning crown, marked the crowning of a new monarch after a 70-year gap since Queen Elizabeth II's coronation in 1953. The ceremony took 17 in Westminster Abbey, a site that has hosted coronations for over 900 years, and followed several traditional stages. The coronation begins with the recognition stage, where the Archbishop of Canterbury introduces the new king or queen to the gathered crowd, who then cheer, "God save the king!" or "God save the queen!" 18 is the oath-taking, where the monarch promises to uphold the law and the Church of England. This is followed by the anointing stage, during 19 the monarch is anointed with holy oil while seated on the coronation chair, with a gold cloth covering the ceremony from view. During the investiture stage, famous coronation artifacts like the sceptre and orb are presented before placing the crown on the monarch's head. Finally, dressed in jeweled golden artifacts and a crown weighing over two kilograms, the new sovereign walks to the seat as the newly crowned monarch of Britain. 20. They then take their 16. (A) deprived (B) derived (C) defied (D) despised

第一題求解

BUN When it comes to sleeping, we probably picture a nice comfortable bed. We imagine laying our heads on big fluffy pillows and lying under nice warm blankets. Most animals, 1., sleep in very different places. Sea otters, for instance, sleep on their backs in the water and 2.don't drown. When giraffes get their forty winks, they are able 3. their hips as a pillow. And some creatures, like the Alpine swift, can even doze off they are flying up in the sky! These 5. shost 4. a S migratory birds travel thousands of kilometers between continents weeks or even every year. On these extremely long flights, they stay in the sky 6. months at a time. In fact, one Swiss study in 2013 showed that Alpine swifts remain in th air for even longer than we imagine. In this study, special sensors were attached to six bird so that their location and speed could 7. at all times. The research team found th landing! the swifts could cover up to 10,000 km and go as long as 200 days AW Wolne 8. 7

第二個為什麼不能選what 要選that

en Ronald McL 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 conducted with architects, lawyers, managers, and children. In one study, the group 2. built the highest structure was architects. However, children performed better than the other adult teams. Why did children do so well? First, they worked quickly (with m had been 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. 5. a group leader.joyed mol of lasag In order to solve problems, we must Marshmallow Challenge helps people do that. collaborate and try new ideas. The

想問plan跟program的差別🙏🏻

英文大神救救我🥹

三、文法選擇(10%) BA -10 (PSI) 16. According to the study, an increasing number of teenagers are spending more time or different social media sites to see what their friends are doing. qrisme oil taut (A) to surf.mator br(B) surfing tiqqoda pag (C) surf ass gaibuloni (D) surfs di wsiv Sw Yo A 17. Sandy placed a stocking over the fireplace, firmly a song that Santa Claus would bring her a erine gift. di Jorb laid mod 296m diles Isuniv. & god bhow eligib si 992 slqooq 2190lq (A) believing so odt to (B) believed iziv 01 (C) was believed aid (D) to believe or brow B18. It is advisable that everyone dool no their hands before having a meal. A D" eg o gaived tuorbiw (A) washed sago sri ni (B) washo nisu br (C) washes) ygolond (D) must wash 20 2019. Hitz Angus learned his beloved grandfather passed away, he couldn't help but burst out me to crying. arbor auto s 992 of 1st place and griqqode og ne slqo Joiberg (A) As soon as vils (B) As much as o algo (C) As far as stw nsq (D) As long as swoll Conv20. Rita was extremely upset since the food at that fancy restaurant didn't taste or she had imagined. 292od isЯlif xool Hiw simit went farw 998 box,qu-169,2diolo agu srl (A) as deliciously as (B) so delicious that on (C) as delicious as Jar (D) so deliciously that JW bhow [OT ID as offer 26 od lliw vliler (suni soni 1996 th

想問螢光筆的地方（第12題），不懂為什麼是填where 附上詳解，請大大幫忙🙏

英文考科 二、綜合測驗(占10分) 說明:第11.題至第20.題,每題1分。 第11.至15.題為題組 2 min 17sce 第2 頁 共10頁 Music is more than recreation. The use of music in human medicine has become increasingly popular Studies show that music can enhance cognitive function in stroke patients and reduce patients' 11. during their medical examinations. Likewise, music has been proven to offer aids in the recovery of pets, creating a calm, warm and relaxing space for their post-surgical recovery. where (To dig into what kind of music might benefit felines during veterinary visits, a study 12. researchers experimented with 20 domestic cats was conducted by Hampton and his colleagues, from the Schools of Veterinary Medicine at Louisiana State University in Baton Rouge.] The felines were 13. to cat-specific music, classical music, or no music at random veterinary visits, 2 weeks apart. The results were good news for the cats in the study. 14. surrounded by cat-specific music, the cats appeared to be less stressed during the examinations. The experiment showed that 15. the welfare, th cat-specific music is something that feline creatures cannot do without during their vet visits. So, if you make an appointment for your cat next time, try playing some special tunes beforehand to calm it. , 11. (A) injection DA 12. (A) that C 13. (A) attracted 14. (A) That is BD 15. (A) in case of 第16至20頭光頭組 (B) anxiety (B) why (B) confined (B) After all (B) in terms of (C) medication (C) how (C) exposed ((C)Nonetheless on behalf of (D) treatment (D) where (D) opposed (D) Accordingly ((D) in addition to