Làm pnw giúp mình với ạ. Mình cần gấp, sẽ vote 5 sao ạ!

Tìm các giá trị của tham số m để hệ phương trình:

chứng minh a + 3 > b - 2 cho a > b

chọn từ nhấn âm khác (âm 1/2/3) khoanh 3/ A environment B understanding C population D conservation 4/ A impossibly B especially C naturally D importantly 5/ A medical B pollutant C imprison D protective 6/ A conserve B disease C wildlife D expand 7/ A inlness B slowly C spoken D police 8/ A correction B motorway C addition D erosion 9/ A damage B pollute C defense D erode 10/ A power B autumn C allow D oreder giúp mik nhé

Một đoàn tàu có khôi lượng m= 5 tấn, đang ở điểm A thì hãm phanh và chuyên động vào ga với gia tốc a= - 0,5m/s và quãng đường mà xe đi được đến khi vào ga là 225m. Tính vận tốc của xe ở A, biết tại A xe có động năng là 5625kJ Ai giúp mik vớiiii

Vẽ sơ đồ nguyên lý sơ đồ lắp đặt mạch điện gồm 2 cầu chì, 2 công tắc hai cực điều khiển hai đèn?.

Tối nay mình nộp rồi nhanh nha cảm ơn nhiều

Cần trước 15h 30 !! CẢM Ơn nha !?

hãy tả lại cảnh sông ngàn phố ở hà tĩnh giúp mình với

Mark the letter A, B, c or D to indicate the sentence that is closest in meaning to each of the following questions. 36. If I was in your shoe, I would let him go. A. My suggestion is that you let him go. B. My advice is that you wear your shoes and let him go. C. I would like to be in your shoe so you could let him go. D. I was wearing your shoes and would like to let him go. 37.1 haven't seen my aunt since the Covid-19 began in 2019. A. I last saw my aunt before the beginning of the Covid-19. B. My aunt left the country after the Covid-19 so didn't see her. C. I haven't seen my aunt for so many years because of the Covid-19. D. My aunt didn't come back until the start of the Covid-19 in 2019. 38. We must take care of all living species on Earth. A. All living species on Earth are taken care of by US. B. All living species on Earth must be taken care of by US. C. All living species on Earth had been taken care of by US. D. All living species on Earth will be taken care of by US. 39. Many people came to the meeting. Some were half an hour late. A. Many people came to the meeting, some of who were half an hour late. B. Many people came to the meeting, some of whom were half an hour late. C. Many people came to the meeting, but some of them were half an hour late. D. Many people who came to the meeting some of them were half an hour late. 40. "Be careful when you cross the road, won't you?" A. He says I will be careful when I cross the road. B. He asked me if I would be careful when I crossed the road. C. He told me to cross the road only when I was careful. D. He warned me to be careful when I crossed the road.