Mọi người giúp mình với Bài 1: Tính $10 ·$`frac{4^6 · 9^5 + 6^9 + 120}{8^4 · 3^12 - 6^11}` Bài 3: CMR a, Nếu ($\overline{abc} - \overline{deg}$) $\vdots$ $13$ thì $\overline{abcdeg}$ $\vdots$ $13$ b, Nếu $\overline{abc}$ $\vdots$ $7$ thì $(2a + 3b + c)$ $\vdots$ $7$

IV. Rearrange the words to make meaningful sentences. (Sắp xếp) 1. They/ old/ are/ enough/ to/ go/ to school. ....................................................................................................... 2. We/ by/ collecting/ funds/ raise/ paper/ and/ waste/ broken/ glasses ........................................................................................................

23. Has Tom finished the work? 24. Did the teacher give some exercises? 25. Have they changed the window of the laboratory? 26. Who are they keeping in the kitchen? 27. How can they open this safe? How can this safe be opened? 28. What books are people reading this year? 29. How did the police find the lost man? 30. How long have they waited for the doctor? II. Read the sentences then write another sentences with the same meaning. 1. It is believed that the wanted man is living in New York. - The wanted man..is believed to be living in New York............... 2. It is said that many people are homeless after the flood. - Many people....are said to be homeless after the flood. 3. It is known that the Prime Minister is in favor of the new law. - The Prime Minister....is known to be in _____ 4. It is expected that the government will lose the election. - The government...is expected to be lose the eclection........ 5. It is thought that the prisoner escaped climbing over the wall. - The prisoner.....is thought to have escaped climbing ____ 6. It is believed that the thieves got in through the kitchen. - The thieves........................................................................................... 7. It is reported that two people were seriously injured in the accident. - Two people......................................................................................... 8. It is said that three men were arrested after the explosion. - Three men.................................................................................... 9. It is said that he is 108 years old. - He........................................................................................ 10. People believed that13 is an unlucky number. - Number 13...................................................................

. Cho hai số nguyên dương a, b sao cho a + b lẻ. Chia tập các số nguyên dương thành hai tập rời nhau A và B. Chứng minh rằng luôn tồn tại hai phần tử x, y thuộc cùng một tập hợp sao cho |x − y| thuộc {a; b}

làm giúp em với ạ em đg cần gấp

gấp :((((((((((((((((((((((((((

Cách sửa lỗi front chữ. #Vài phút nghịch ngu của đứa em mình khi nó học onl, mong mọi người giúp chứ mình ngu mấy cái này :v #Không copy mạng.

a, xy-z+y-xz b, x^2-bx+ax-ab c, A= x^2+4xy+4y^2-z^2 tại x=5, y=7 và z=12 d, B= x^2-4y^2+x-2y tại x=1 và y=2 mọi người giúp em với ạ !

x(x^3+x^2+x+1)-(x^3+x^2+x+1) ^2 ,^3 la so mu nha

Vẽ mầm vui digi Nl: Câu hỏi trước bị xóa bùn quá.. Ai nhanh được hn ạ