9 ,10 ạ. em cần gấp anh chị giúp e

cho tam giác ABC trong đó BC= 12 CM góc ACB = 30 độ góc ABC = 40 độ kẻ đường cao AN và BH TÍNH : a ) BH, AB = ? b ) ac, an = ?

Calli: "If you felt guilty, you must know how to fix it." nl: ...

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giúp mình với, tối mình nộp rồi mà còn nhiều lắm

1. Cho (d):2x+y+1=0 (C):x^2+y^2-2x+4y+1=0 Tìm ảnh (d) và (C) qua: a) T vecto v, vecto V(2,-1) b) Đoy c)ĐI,I(1,3)

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Giúp mik vs ạ, đc câu nào thì lm ạ, ko cần hết

Exercise 2. Give the correct form of the word in brackets: toV/ V-ing/ V bare 1. They are used to (prepare) _______ new lessons. This helps them ( improve) ……….. knowledge a lot. 2. By (work) _______ day and night , he succeeded in ( finish) _______ the job in time. 3. His doctor advised him (give) _______up (smoke)_______. 4. Please stop (talk)_______. We will stop (eat) _______lunch in ten minutes. 5. Stop (argue) _______and start (work) _______. 6. I like (think) _______carefully about things before (make) _______decision. 7. A: Ask him (come) _______in. Don't keep him (stand) _______at the door. B: He made mistakes. His mother allows him ( stand ) __________ outside. She doesn’t lets him ( come ) ____________________ in 8. Did you succeed in (solve) _______the problem? I could ( solve) ____________it well. 9. Don’t forget (lock)_______ the door before (go)_______ to bed. 10. Don’t try (persuade) _______ me . Nothing can make me (change)_______ my mind.

Giúp hứa ctlhn 5sao , cảm ơn Đề bài: Kể về sự việc Chú ý: Cấm chép mạng Chép mạng = báo cáo