giúp với : Bài 5. Viết số thích hợp vào chỗ chấm : a) 10,5m = …………………… cm b) 10,5m2 = …………………… cm2

Với giá trị nào của m thì: a/ Phương trình 2x 2 – m 2 x + 18m =0 có 1 nghiệm x= -3 b/ Phương trình mx 2 -x -5m 2 =0 có 1 nghiệm x = -2 giai giup minh nha

Tìm một số có hai chữ số biết rằng 2 lần chữ số hàng chục lớn hơn 5 lần chữ số hàng đơn vị là 1 và chữ số hàng chục chia cho chữ số hàng đơn vị được thương là 2 và dư cũng là 2.

II. Write the number of the means of transport next to each picture.

Mọi người giải giúp mk bài 2 nha

Đốt cháy hỗn hợp 2 ankin đồng đẳng liên tiếp có khối lượng là 4,3g thu được 8,96 lít CO2 - Tìm CTPT của 2 ankin - Cho hỗn hợp trên vào dd AgNO3/NH3 t°---> bao nhiêu mg kết tủa?

Giúp mk vs ak mk đang cần gấp cảm ơn mn nhìu ạk😀

Mọi người giúp mình với II. Complete the sentences with present participle or past participle form of the verb in brackets. 1. The film wasn't as good as we had expected. (disappoint) a. The film was _________________________ . b. We were ________________________ with the film. 2. Diana teaches young children. It's a very hard job but she enjoys it.(exhaust) a. She enjoys her job but it is often ______________________ . b. At the end of a day's work, she is often _______________________ . 3. It's been raining all day. I hate this weather. (depress) a. This weather is _____________________ . b. This weather makes me ______________________ . c. It's silly to get ____________________ because of the weather. 4. Clare is going to the United States next month. She has never been there before. (excite) a. It will be an ________________ experience for her. b. Going to new places is always ________________ . c. She is really __________________ about going to the United States III. Complete the sentences with although/in spite of/because/because of 1 Although it rained a lot, we enjoyed our holiday. 2 a, ……………………..... all our careful plans, a lot of things went wrong. b, ………………... we'd phoned everything carefully, a lot of things went wrong. 3 a, I went home early ……………….……... I was feeling unwell. b, I went to work the next day………………… .... I was still feeling unwell. 4 a, She only accepted the job ....................................... the salary, which was very high. b, She accepted the job ……………………………….. the salary, which was rather low. 5 a, I managed to get to sleep ………………………... there was a lot of noise. b, I couldn't get to sleep ………………………………...... the noise.

Xác định a,b,c,d biết: a) (ax^2+bx+c).(x+3)=x^3+2x^2-3x với tx b x^4+x^3+x^2+ax+b=(x^2+x-2).(x^2+cx+d) với tx

1)“Can I see your driving licence, Lan” asked the police officer The police officer asked Lan 2)“ Do you finish your assignment, boys?” asked the teacher The teacher asked boys 3)“ Do your exercises carefully, Tam” asked the teacher The teacher asked Tam 4) in the future/ would use/ The interviewer/ my English language/ what I/ asked me/ for (sắp xếp câu) 5) Many doctors want to see a law banning all tobacco ____________________. (advertise)