cho tam giac abc vuong tai A ,duong cao AH .Tinh cac goc cua tam giac abc neu can(1/ab^4+1/ac^4+1/bc^4)=3/4ah^2

cho hàm số y=1/3mx^3-(m-1)x^2+3(m-2)x+1/2 tìm m để hàm số có cực đại cực tiểu thỏa mãn x1,x2 >0 help me ;)))

Mr brown(come) .He is sitting in the garden Hom many language ( you speak) I (make) a mistake dear. Please forgive me My house( paint) by a skillful painter for three days

50. They have no ______ of the help. A. expect B. expectation C. expectancy D. expectorate 51. Do you feel _____ when taking a test? A. nervous B. nerve C. nerveless D. nervy 52. Paper that _____ ink is called blotting paper. A. absorb B. absorbs C. absorbed D. absorbent 53. The scientists have invented a special chemical that attaches itself ______ to cancer cells. A. prefer B. preference C. preferential D. preferentially 54. _______ is very important in doing mathematical exercises. A. Precise B. Precisely C. Precising D. Precision 55. The workers chose Mr. Pike their _______. A. represent B. representative C. represents D. representation 56. Jack London wrote several ______ novels on adventure. A. interesting B. interested C. interest D. interestingly 57. She is _____ with her present job. A. satisfy B. satisfied C. satisfaction D. satisfactory 58. They are my _____ friends. A. intimate B. intimacy C. intimates D. intimation 59. It takes one a long time to become an ______ pianist. A. accomplish B. accomplished C. accomplishment D. accomplishing 60. The young usually do things _______. A. enthusiasm B. enthusiast C. enthusiastic D. enthusiastically 61. The industrial ______ has made many changes in our country. A. develop B. developing C. developer D. development

giải nhanh giúp mình nhé 5h30 mình nộp rồi

calli: Mint đập chai màu xanh lá, có tâm, digi, trang trí, đổ bóng cacthu nhe, xấu= 1* Lề: dạo nì tui thấy có vài bạn đặt tên nick giống biệt danh tui có nhủy ==" làm j thì làm nhưng đừng lấy biệt danh của tui làm biệt danh của mấy bạn nhe ._. nó có bản quyền r đếy @Mint

giải nhanh giúp mình nhé 5h30 mình nộp rồi

2^x + 2^y= 2^x+y với x,y thuộc N

Change these sentences into reported speech or direct speech 4. “I did ten exercises yesterday evening” Nga told me. …………………………………………………………………………………………… 5. “I’ll phone you as soon as I arrive in Hanoi tomorrow” Nam told Nga. ……………………………………………………………………………………………. 6. “Will I have to come to the meeting next week?’’ He said to me. …………………………………………………………………………………………… 7. "Don't smoke here" I said to him …………………………………………………………………………………………… 8. "If I were you, I’d offer this job”. …………………………………………………………………………………………… 9. Mary told me that she liked my new dress very much. …………………………………………………………………………………………… 10. “What will you do when you leave school?” Ba asked me …………………………………………………………………………………………… giúp mik bài ktra 15p vs ạ vote 5 sao xin cảm ơn

A là C7O6H2 tỉ lệ của A và NaOH là 1:2 Vậy A thuộc loại hợp chất nào ? \Gải đầy đủ