Tìm giá trị nhỏ nhất B= x^2 - 3x

Đăng lên mn trả lời nhăng e đăng lại mn giúp e Vote 5*

40. I‘d _________ you didn’t leave just at the moment. A. rather B. like C. better D. love 41. Forget it. It is no use crying over spilt _________. A. water B. juice C. milk D. lemonade 42. Smith knew that he could make a success of the little weekly newspaper in the long _______. A. time B. run C. distance D. step 43. ________ that she could not say anything. A. Upset was she B. However upset was she C. So upset was she that D. So upset she was 44. I ________ my best suit at the party last night - everyone else was very casually dressed. A. needn't wear B. mustn't wear C. needn't have worn D. mustn't have worn 45. By far, _________________________ of Saudi Arabia is oil. A. it is the most important export B. the most important export C. the most important export is D. that it the most important export 46. Who did you invite to dinner last night? – No one _______ than Frank and his family. A. another B. the other C. other D. the others 47. The man who lives opposite us sometimes comes __________ for a cup of coffee. A. over B. off C. on D. to 48. I have three brothers, _____________ are businessmen. A. that all of them B. who they all C. all of whom D. who all of them 49. It was _________________ that we spent the whole day at the beach. A. so nice a weather B. such nice weather C. such nice a weather D. so a nice weather

Cho góc AOB bằng 140 độ ,vẽ tia OC là tia phân giác của góc AOB. Vẽ tia OD là tia đối của tia OA. a, Tính DOC b,Vẽ tia OE nằm trong AOB, sao cho AOE bằng 5/7 AOB chứng tỏ OB là tia phân giác của DOE.

Viết câu miêu tả tình huống (ở hiện tại) và câu ước sử dụng các từ gợi ý. 9.She/ always/ very noisy/ and/ I/ wish/ she/ not/ make so much noise. 10.We/ poor/ and/ we/ wish/ we/ earn/ a lot of money.

Giúp vs ạ. Cho hệ hệ pt: {(m-1)x +y=2; x+2y=2 Tìm tất cả các giá trị nguyên của m để hệ pt có nghiêm (x;y), tronh đó x,y là các số nguyên.

Fill in blanks with preposition: 1.....my parents' surprise I passed all my examination. 2. What's....your mind? You look rather worried. 3. I promised to be.... your side no matter what happens. 4, You look so calm and...ease with yourself

Nhân tài giúp đỡ e ah ! CMR: Nếu pt: $x^{3}$ - a $x^{2}$ +bx+c=0 có 3 nghiệm lập thành 1 cấp số cộng thì 9ab=2 $a^{3}$ +27c

Tính giá trị biểu thức sau Đây là dạng bài tập các hằng đẳng thức

40. I‘d _________ you didn’t leave just at the moment. A. rather B. like C. better D. love 41. Forget it. It is no use crying over spilt _________. A. water B. juice C. milk D. lemonade 42. Smith knew that he could make a success of the little weekly newspaper in the long _______. A. time B. run C. distance D. step 43. ________ that she could not say anything. A. Upset was she B. However upset was she C. So upset was she that D. So upset she was 44. I ________ my best suit at the party last night - everyone else was very casually dressed. A. needn't wear B. mustn't wear C. needn't have worn D. mustn't have worn 45. By far, _________________________ of Saudi Arabia is oil. A. it is the most important export B. the most important export C. the most important export is D. that it the most important export 46. Who did you invite to dinner last night? – No one _______ than Frank and his family. A. another B. the other C. other D. the others 47. The man who lives opposite us sometimes comes __________ for a cup of coffee. A. over B. off C. on D. to 48. I have three brothers, _____________ are businessmen. A. that all of them B. who they all C. all of whom D. who all of them 49. It was _________________ that we spent the whole day at the beach. A. so nice a weather B. such nice weather C. such nice a weather D. so a nice weather