X mũ 2 - 3x+1 .tìm giá trị nhỏ nhất

tìm số dư của phép chia (2009^2010+2010^2011+2011^2012)^10 cho 111

Với a,b > 0 , chứng minh căn a+ b < căn a+ căn b

Mong mọi người giúp đỡ em ạ em đang cần rất gấp

Trả lời câu hỏi : ( Chỉ cần đáp án bằng Tiếng Anh ) The time when you can play after finishing your homework ?

Vậy biểu hiện chung, và dẫn chứng Của chia sẻ và gắn bó trong quan hệ giữa bố mẹ và con cái là gì( làm thành hai đoạn ạ) em cảm ơn nhiều

cần gấp xong vote 5 sao và câu trả lời hay nhất

500. I receive ---. A. all kinds of letter B. all kind of letters C. all kinds of letter D. all kinds letters 501. The cattle made a lot of --- in the farm yard. A. noise B. noisy C. noises D. noisier 502. We sell ---. A. all kinds of cloth B. all kind of cloth C. all kind of cloths D. all the kinds of cloth 503. We must cross the street at the ---. A. pavement B. bus stop C. zebra crossing D. district 504. While you are at the greengrocer’s, please get a ---. A. greens B. salad C. lettuce D. green 505. He is a curious boy. He always --- questions. A. asks B. looks at C. says D. laughs at 506. Do you need ---? A. a help B. any help C. any helps D. helps 511. I’m afraid you --- to do this. It’s a regulation. A. should B. ought C. must D. have to 56. The person you work with is your ---. A. college B. colleague C. collaborator D. roommate 561. To make the land in good condition, we grow different ---. A. shops B. crops C. plants D. trees 583. There are two teeth need --- and one tooth need to be ---. A. pulled out/ to fill B. pulling out/ filled C. to pull out/ filling D. pull out/ fill 584. You want to address an envelope to a whole family. You write: ---. A. Mr. and Mrs. Wilson and family B. Family Wilson C. Family Mr. & Mrs. Wilson D. Mr. & Mrs. Wilson 585. When he ---, I --- my homework. A. came/ was doing B. has come/ do C. was coming/ have done D. comes/ was doing 586. You want to begin a letter to a woman you have never met. You write: ---. A. Dear Mrs. Grey B. Dear Miss. Grey C. Dear Ms. Grey D. Dear Mr. Grey 588. A pupil is answering a male teacher. The pupil says: “---.” A. Yes, sir B. Yes, Mr. C. Yes, Sir Teacher D. Yes, Mr. Teacher 592. You stop a woman in the street to ask the way. You say, “---.” A. Excuse me, Mrs. B. Excuse me C. Madam D. Excuse me, Lady 593. Those naughty boys kicked the bag --- my class. A. from B. to C. in D. into 594. She wasn’t at the seaside during the holidays. She wishes she --- there. A. had been B. has been C. would be D. were 596. You are answering a university professor. You say: “---.” A. Yes, Professor Hawkins B. Yes, Mr. Professor C. Yes, Professor D. Yes, Hawkins 598. A shopkeeper might say this to a man: “Can I help you, ---?” A. Mr. B. Sir C. Master D. Ms. 600. A shopkeeper might say this to a woman: “Can I help you, ---?” A. Mrs. B. Miss C. Madam D. Lady

(cho Δ ABC ⊥ A, đường cao AH.Biết AH=6cm, $\frac{HB}{HC}$ = $\frac{4}{9}$ tính các cạnh còn lại của ΔABC

Chỉ cần lm câu 6,7,8,9,10,em cám ơn