`(2^3 . 9^4 + 9^3 . 45) : (9^2 . 10 - 9^2)`
`= (2^3 . 9^4 + 9^3 . 5 . 9) : [9^2 . (10 - 1)]`
`= (2^3 . 9^4 + 9^4 . 5) : (9^2 . 9)`
`= [9^4 . (2^3 + 5)] : 9^3`
`= (9^4 . 13) : 9^3`
`= (9^4 : 9^3) . 13`
`= 9 . 13`
`= 117`
`(2^3. 9^4 +9^3 . 45) : (9^2 . 10 - 9^2 )`
`= ( 2^3 . 9^4 + 9^3 . 9 . 5) : [ 9^2 (10 - 1) ]`
`= (8 . 9^4 + 9^4 . 5) : [ 9^2 . 9 ]`
`=( 9^4 ( 8 +5)) : 9^3`
`= 9^4 . 13 : 9^3`
`= (9^4 : 9^3) .13`
`= 9 .13`
Một chiếc ô tô xuất phát từ A, cùng lúc đó một chiếc xe máy xuất phát từ B. Nếu 2 xe đi cùng chiều thì sau 3 giờ 30 phút ô tô đuổi kịp xe máy. Nếu 2 xe đi ngược chiều thì sau 42 phút ô tô gặp xe máy. Biết quãng đường AB dài 63km, tìm vận tốc 2 xe.
The simple past or past perfect 1. They ( go) home after they ( finish) their study. 2. Yesterday when I ( arrive) to the party, The party ( start). 3. After the guests ( leave), she ( go) back into the living- room and ( switch) off the light. 4. On arrival at home I ( find) that she ( just leave) just a few minutes before. 5. Before he ( go) to the bed, he ( do) his homework. 6. When they ( get) to the place, the man ( die). 7. He ( do) nothing before he ( see) me. 8. Hoa ( thank) me for what I ( do) for her. 9. I ( be) sorry that what I ( hurt) him. 10. After they ( go), I ( sit) down and ( rest).
giúp mình nhanh nhaa cảm ơn nhìu nhìu lun
Giúp em vs:(( Tả sách ngữ văn lớp 6(tự làm nha anh/chị)
Giải và tìm `x,y in ZZ: x^2+y^2=7z^2`
Trả lời hộ e 2 bài này vs huhuhuhu
Xác định lỗi sai và sửa lỗi câu: “Khoa học Tự nhiên nói chung, môn Văn nói riêng, đòi hỏi người nghiên cứu phải đọc nhiều, ghi chép nhiều”
Các bạn làm hộ mình nha mình cần gấp 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏 chọn 1 bài bạn nhé
mong mọi người giải giúp mình bài này với ạ. Mình xin chân thành và trân trọng cảm ơn ạ!
People’s lives will change dramatically in the next 50 years. We anticipate advances in genetics, medicine, and transportation, the opening of international markets, and more. People look enthusiastically (26) ________ the future. Yet, life today is also dramatically different from life 50 years ago, and that life was dramatically different from life 100 years ago. Is life "better" now than it was fifty years ago? For many people, (27) ________ answer is yes. But for many, the answer is no. Hunger, poverty, misery, and cruelty existed a hundred years ago. They existed thousands of years ago, and they exist today. "Technology" and "development" have (28) ________ life dramatically for great numbers of people. But to some people these benefits are not available, and their existence alone does not address the (29) ________ of those people. For all our "advancement", a large part of our world lives worse, or no better, than it did fifty years ago. A future in which all people could (30) ________ the fruits of this advancement would be a future truly worth celebrating. 26. A. to B. for C. at D. on 27. A. an B. a C. the D. Ø 28. A. progressed B. improved C. advanced D. changed 29. A. problems B. circumstances C. conditions D. troubles 30. A. benefit B. achieve C. include D. enjoy
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