Cho hệ phương trình $ \left\{ \begin{array}{l} (1-y)\sqrt{x-y}+x=2+(x-y-1)\sqrt{y} \\ 2y-x+1=\sqrt{3x-y} \end{array} \right. $ có nghiệm $ ({{x}_{o}};{{y}_{o}}) $ . Giá trị nhỏ nhất của $ {{x}_{o}}+{{y}_{o}} $ là:

NHỜ CÁC CHUYÊN GIA GIẢI GIÚP EM CÁC BÀI SAU ĐÂY VỚI Ạ 12 . a.Tìm số tự nhiên nhỏ nhất có 3 chữ số khác nhau , biêt số đó vừa chia hết cho 2 và 9 b . Tính giá trị biểu thức sau : A = 154 , 35 : X + 2 x X biết X = 24,5 17 . a. Tìm 3 số tự nhiên lẻ liên tiếp có tổng bằng 2019 b . Tìm 2 số biết rằng 2 số đó bằng 96 . Nếu giảm một thừa số đI 2 đơn vị thì tích mới sẽ bằng 80 EM CẢM ƠN Ạ

Present, Past tense 1.I was the last to leave thee office.Everybody else..........(go) home 2.Laura was sitting on the ground. She was out of breath. She.....(run) 3.It's time we.....(do) something to stop road accident 4.I sat down at the desk and ......(wonder) why my father's letter......(not arrive) yet 5.I.......(make) a cake. That is why my hands were all over covered with flour 6.I came to the class late. When I.......(enter) the teacher(finish)..........going over the previous lesson and ......(write) something on the board 7.When I .......(open) the door last night I .......(see) a man on his knees.He clearly......(listen) to our conversation and I....(wonder) how much he ........(hear).When I .......(ask) him what he .......(do), he ........(say) he .........(drop) a 50 p piece outside the door and.......(look) for it 8.I never .......(see) anyone more punctual than your brother 9.My clothes aren't in the room.They....(take) them away 10."you......(be) here before?" "yes,I.....(spend) my holiday here last week" 11.Ms Abbott.....(walk) home from work when she....(see) a child fall of the bridge 12.Tell them to stop and take a rest.We....(work) long enough 13.You.....(find) the key which you.....(lose) yesterday?-Yes I ......(find) it in the packet of my other coat 14.He.....(be) to the theatre three times this month 15. It.......(rain) hard. We can't do anything until it ......(stop) 16.What.....(make) that terrible noise?It's the pneumatic drill.They.....(repair) the road. 17.The plane...........(fly) at 2,000 metres 18.The children are very quiet.Go and see what they.........(do).OH,they.......(cut) up some $5 notes 19.Why you .......(make) a cake?Someone......(come) to tea? 20.I......(do) some shopping yesterday,when I......(see) some my friends 21.Laura.....(miss) the party because no one....(tell)her about it 22.I.....(work) on the computer when the fire.....(break) out. 23.He........ (tell) us about his marriage when we.......(have) afternoon tea. 24.I .....(phone) you last night, but you.......(not answer).What you.....(do) at this time? 25.I.......(think) it's a pity you don't take more exercise.You.....(get) fat 26. While we .....(fish) someone........(come) to the house and......(leave) this note

Cho dạng đúng của động từ trong ngoặc 342. They would be very sad if you (not visit) them. 343. If she sold her house, she (not get) much money for it. 344. He talks as if he (do) all the work himself, but in fact his two bothers (do) most of it. 345. If I (see) a tiger (walk) across a street in Ha Noi, I (climb) up a tree. That (not be) any use. The tiger (climb) after you.

M.n ơi, giúp mình bài dưới đây với . Cảm ơn mọi người rất nhiều ..

Các ac thầy cô ơi giúp em với ạ! Đề bài: Viết lại câu You should learn harder. => You don't...….

Bài 1:Rewrite the following sentences without changing the meaning of the first one using the word in bracket. 1 My uncle thinks bird watching is boring.(Finds) 2My hobby is carving woods(Interested) 3I spend three hours doing the homework every day.(Takes) 4It's easy to ride a bicycle(Riding) 5 She learned to carve eggshells from her grandmother(Taught) 6 My cousin started collecting glass bottles when he studied in Italy(Took) 7 She is keen on doing yoga when she has free time(Enjoys) ai trả lời đc mình cho 5 sao,câu trả lời hay nhất và 1 nick Liên Quân (hoặc free fire,Pubg mobile) cảm ơn các bạn nhiều,yêu các bẹn.

Giúp mình câu 464 với ạ. Xin cảm ơn

Giúp mình giải phần 1 với ạ.mình cảm ơn

Giải giúp mình câu 23 và 24 với ạ