Giải giúp em với ạ em đang cần rất gấp ạ

Giúp mình nha mình khoanh trắc nghiệm ạ

giúp mình bài này với hứa sẽ vote 5*

Viết phương trình chính tắc của Elip có trục lớn gấp đôi trục bé và có tiêu cự bằng "4 căn 3" A. $\frac{x^{2}}{36}$+$\frac{y^{2}}{9}$=1 B. $\frac{x^{2}}{36}$+$\frac{y^{2}}{24}$=1 C. $\frac{x^{2}}{24}$+$\frac{y^{2}}{6}$=1 D. $\frac{x^{2}}{16}$+$\frac{y^{2}}{4}$=1

Những từ coutry,city,preschool chỉ trạng thái gì

Cho các công thức hóa học sau : CaO, NO2,HCl,NaOH,CuSO4,P2O5,Fe2O3,Al(OH)3,CaCO3. hãy phân loại các chất trên và đọc tên chúng.

Với mỗi số X, ký hiệu [X] là số nguyên lớn nhất không vượt quá X (gọi là phần nguyên của X). Giá trị của biểu thức [6,5]× [2/3] + [2] × 7,2 + [8,4] – 6,6 là:

Dạ mong anh chị giúp em câu b ạ làm giúp em câu b ạ mong anh chị giúp em

chuyên gia giúp em câu này vs: đề: Tìm tất cả các giá trị của tham số thực m để hàm số y=mx³ + mx² + m(m-1)x +2 đồng biến trên R A) m ≤ 4/3 và m $\neq$ 0 B) m = 0 hoặc m ≥ 4/3 C) m ≥ 4/3 D) m ≤ 4/3 chuyên gia giúp em chi tiết vs

5 They are going to have (A) to leave (B) soon and so do (C) we (D). 6 The (A) boss laughed when the secretary has told (B) him that she really (C) needed (D) a pay rise. 7 Five (A) thousand pounds were (B) stolen from (C) the (D) bank. 8 Debbie,__________ father is an excellent tennis player, has been playing tennis for ten years. A. whose B. who C. when D. that 9 Summer in England is the __________ season of all. A. good B. better C. best D. the best 10 The teacher told the boys to stop __________. A. to make B. played C. playing D. being played 11 My friend is fond of __________ TV in the evening. A. watching B. to watch C. watch D. watched 12 People in the countryside live __________ than those in the city. A. happy B. more happily C. happily D. less happy 13 My dad doesn’t mind __________ my mom from work every day. A. pick up B. picked up C. picks up D. picking up 14 This school __________ ten years ago. A. be built B. is built C. was built D. built 15 She is bored __________ getting up early. A. with B. of C. in D. to 16 "Don't __________ in class" said the teacher. A. speak B. tell C. talk D. say 17 We spent four hours __________ to the airport. A.reaching B. getting C. approaching D. arriving 18 When I turned up, the town hall was already__________ of teenagers. A.full B. packed C. crowded D. dense 19 US dollars are considered common __________ in international transactions. A.currency B. money C.deposite D. savings 20 Let’s wait here for her; I’m sure she’ll __________ up soon. A. arrive B. return C. come D. turn 21 The English 8 textbook __________ of 16 units. A.comprises B. consists C. divides D. includes 22 I do not use those things any more. You can__________ them away. A get B. fall C throw D. make 23 Everyone expects Johnson to __________ Smith in today’s final. A. beat B. win C. score D. champion 24 One high school student says, “There’s big __________ to get into a good university. A. stress B. pressure C. nervous D. tense 25 The hotel is beautifully __________ in a quiet spot near the river. A. located B. situated C. stood D. stayed 26 Don’t go too fast! I can’t __________ up with you.    A. keep      B.catch   C. follow         D. run Choose the most suitable response to complete the following exchange. 27 Lam: "Bye!" Lan "__________." A. See you lately B. See you later C. Thank you D. Meet you 28 Hung : "Would you like to have dinner with me?" Lam : "__________." A. Oh, yes, I 'd love to B. I'm very happy C. Yes, it is D. Yes, so do I 29 Father has lost his job, so we’ll have to tighten our belt to avoid getting into debt. A. earn money B. spend money C. sit still D. economize 30 Sorry, I’m late. A problem came up with the keys. A. rose B. happened C. appeared D. became available ( Gấp các mem ơi )