Đáp án:
$M\Big(2;\dfrac{3}{2}\Big)$
Giải thích các bước giải:
😭😭😭😭😭😭😭😭😭😭😭😭😭 giúp😭😭😭😭😭
Giải phương trình : (24x +12)($x^{2}$ -9)= 0 NL : dưới bình luận
1: the teachers at out school __________ (give) us lots of homework 2: my brother ___________ (play) tennis, but he ___________ (not like) it 3: how often ____________ (they/go) jogging? 4: we (not study) ____________ chemistry because it __________ (be) difficult 5: ____________ (your parents/ watch) TV every night? 6: mark's class __________(do) port on Monday and Wednesday 7: children often ___________ (use) a computer for school work 8: mike __________ (usually/ not play) computer games during the week
Cho ΔABC nhọn (AB < AC) nội tiếp đường tròn (O), ˆ 0 BAC = 60 . Gọi H là giao điểm của ba đường cao AD, BE và CF của ΔABC. a) Tính BOˆ C và chứng minh tứ giác BHOC nội tiếp. b) Giả sử 2 ABC S = 360 dm . Hãy tính . AEF S c) Gọi I là trung điểm của BC. Đường thẳng vuông góc với HI ở I cắt AB, AD, AC lần lượt ở Q, G, S. Chứng minh: GQ = GS. (Giúp mình với ạ mình đang cần gấp)
Vẽ chibi / mầm - Line nữa nhoa N/L : Ad làm em hết hồn :< Bảo ad đổi lại mật khẩu , rồi ad đăng xuất ra làm tui hết hồn lun :<<
Một bà đi chợ bán trứng, lần đầu bà bán được 2/5 số trứng, lần hai bà bán được 2/3 số trứng còn lại, cuối cùng còn lại 10 quả. Hỏi số trứng ban đầu bà đem đi bán là bao nhiêu?
ĐỀ :hãy hoàn thành câu ,sử dụng dạng so sánh hơn của các tính từ hoặc trạng cho săn TÍNH TỪ HOẶC TRẠNG TỪ CHO SẴN : angrily , large ,soft ,cleverly ,warm , confortably ,hard ,rich ,costly ,beautifully 1 Her voice is ..........................than mine 2 James can sing .........................than many singers 3 We can live ...............................in the countryside than in the city 4 We hoped we would own a ........................... apartment 5 This mordern computer is ........................... than that old-fashioned one 6 My new house is .............................designed than my old one 7 My father reacted ............................to my misbehavious than my mother 8 John studies .............................than anyone else in the class 9 It is getting ..................................... today so we can go out 10 People in the city are .............................. than people in the countryside
chứng minh các bất đẳng thức sau 1/a + 1/b >= 4/ 1+ ab
giúp mình với ạ, ai giúp đc mình xẽ vote 5s
45. At the factory he likes people to let him have his own way. a. He doesn't like it when people tell him what to do. b. He often needs the help of other people in his work. c. He doesn't accept help from people he dislikes. d. He likes people to think all good ideas are his own. 46. I would rather have an egg for breakfast. a. I would eat an egg for my breakfast. b. I don't want an egg for breakfast. c. I prefer to have an egg for breakfast. d. I'll have an egg if there, is nothing else for my breakfast. 47. It would have been a perfect paper except for some mistakes. a. It was a perfect paper b. The word was spelt perfectly. c. The paper had some mistakes d. The teacher did not accept the paper 48. It's waste of time to try to explain anything to Tony. a. Tony should be given explanation. b. It's not worth trying to explain anything to Tony. c. To save time, explain it to Tony. d. It's well worth trying to explain things to Tony. 49. The workers are threatening to go on strike unless the company raises the hourly wage. a. If their wages are not increased, the workers plan to strike. b. The company raised the workers' wages to avoid a strike. c. The company demands that the workers strike. d. The company threatened to pay the workers less. B. Choose the best sentence -a, b, c, or d - made from the given cues. 50. I/ had/ An/ clean/ bedroom/ before/ let/ her/ go out/ play// a. I had An clean up her bedroom before I let her going out to play. b. I had An cleaned her bedroom before letting her go out for playing. c. I had An clean up her bedroom before I let her go out to play. d. I had An to clean her bedroom before letting her go out to play. 51. It/ wonderful/ hear/ magnificent performance// a. It was wonderful to hear such a magnificent performance. b. It was wonderful of hearing a magnificent performance. c. It's wonderful to hear such magnificent performance. d. It will be wonderful to hear a such magnificent performance. 52. He/ not keep/ promise/ visit me/ regularly// a. He doesn't keep promising and visiting me regularly. b. He didn't keep his promise to visit me regularly. c. He hasn't kept to promise to visit me regularly. d. He doesn't keep his promise to visit to me regularly. 53. We/ listen/ old man/ say/ his story/ beginning/ end// a. We listened to the old man saying his story from beginning to end. b. We listened the old man say his story from the beginning to the end. c. We listened to the old man say his story from beginning to end. d. We listened to the old man to say his story from beginning to end. 54. boys/ clever/ see/ solution/ problem/ so quickly// a. The 'boys were clever to see the solution to the problem so quickly. b. Boys are clever to see the solution of problem so quickly. c. The boys are clever at seeing the solution to the problem so quickly. d. The boys were clever to see the solution of the problem so quickly.
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