GIẢI VÀ KÈM HÌNH VẼ GỢI Ý : DÙNG TÍNH CHẤT ĐƯỜNG TRUNG TUYẾN

Rút gọn biểu thức a, A=(m-2n) ²+4mn b, B=(6z-2) ²+4(3z-1)*(2+t)+(t+2) ² Ghi rõ từng bước làm plssssssssssssssssss

Dạ mod và admin,m.n calli cho em dòng này ạ,dzạ,calli chữ "Buồn" _dzạ em vừa bị boy friend em cắm cái sừng dzừa bị mất hồn ạ!Dzạ!_ *dạ ko có ý tuyển ny hay j ạ*

The garage is going to repair the car for us next week. —> We are going to have the car ___________________________________________ [Giúp mình mỗi câu này thôi ạ😢]

Exercise 5: Read the text below and think of the word which best fits each gap. Use only one word in each gap. ARE THE BEST CHEFS MALE OR FEMALE? There has been much debate over 1. ______ men or women make the best chefs. There seems to be 2. ______ reason why one sex should be better than 3. ______ other. For years the kitchen has been the domain of women in many countries yet 4. ______ is no doubt that most of the top restaurants employ male chefs. Does this mean we have different taste buds or that one sex is 5. ______ creative? In fact, this bias towards men in the profession may have absolutely 6. ______ to do with cooking. Working in a top class, busy kitchen is fast and often there is a hostile atmosphere 7. ______ women are not keen on In addition, the working hours 8. ______ chefs are very demanding; they can work 15-hours days. Many women will not tolerate 9. ______ or perhaps can’t do it because they 10. ______ to look after the children. However, there are signs that things are changing. Women seem to 11. ______ winning equal awards now for their cooking and cookery programs on television star both men and women. One of the most popular programs is a husband and wife team, so perhaps the best solution is 12. ______ have a male and a female chef together. Các bạn ơi giúp mk với được không ạ Mk xin cảm ơn ạ

ất cả tính giá trị biểu thức 1. a4.a6 2. (a5)7 3. (a3)4.a9 help me :((((

Tìm x a) x^3 = 9x b) x(x +2) - (3x + 6)= 0 c)(x - 2)^2 - (x -2) (x+2)= 0

Một hộp đựng 9 thẻ được đánh số từ 1 đến 9. Có bao nhiêu cách chọn hai thẻ sao cho tích hai số trên hai thẻ là số chẵn?

mik đang cần gấp ạ!!!!! mng giúp mik với , hứa vote 5* +cảm ơn II. Put the verbs in the brackets into the correct form 1. The ice was thick enough for us (walk) _______________ on. 2. Last year, we had an opportunity (play) _______________ for the school team. 3. He has the capability of (do) _____________ this job well. 4. Hunger and poverty are worldwide problems to which solutions (must/ find) _______________. 5. People who fear flying avoid (travel) _______________ by plane. 6. We were just about (leave) _______________ when Jerry arrived. 7. He had three tries at (mend) _______________ the lock and gave up. 8. She was watched (eat) _______________ the sandwich. 9. We are considering (go) _______________ for a holiday. 10. He fancies (hear) _______________ footsteps behind him. 11. It took me three hours (finish) ________________ our test. 12. They are thinking of (import) ________________ flowers from Viet Nam. 13. He is practising (throw) ________________ the ball into the net. 14. The goalkeeper just missed (stop) ________________ the ball. 15. This bread is too stale (eat) _________________.

Trộn lẫn hỗn hợp dung dịch gồm 0,35 mol dung dịch HCl và 0,4 mol HNO3 loãng vào dung dịch chứa y mol NaAlO2 thu được 11,7 gam kết tủa. Giá trị của y A. 0,3 B. 0,2 C. 0,2 hoặc 0,45 D. 0,3 hoặc 0,45