bn nào làm xong trước thf mik tick cho
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BCNN( 10; 16; 7) = 560
cl: \(10=2\cdot5\)
\(16=2^4\)
\(7=7\cdot1\)
=> BCNN( 10; 16; 7) = \(2^4\cdot5\cdot7\cdot1=560\)
- Từ cuối thế kỉ IX, nhà Đường suy yếu. Lợi dụng thời cơ đó, Khúc Thừa Dụ tập hợp nhân dân nổi dậy.
- Năm 905, nhân lúc Tiết độ sứ An Nam là Độc Cô Tổn bị cách chức, được nhân dân ủng hộ, Khúc Thừa Dụ đã tổ chức đánh chiếm thành Tống Bình, tự xưng là Tiết độ sứ, xây dựng chính quyền tự chủ.
- Năm 906, vua Đường buộc phải phong Khúc Thừa dụ làm Tiết độ sứ An Nam đô hộ.
\(\left(\frac{1}{3}-\frac{3}{2}x\right)^2=\frac{9}{4}\)
\(=>\left(\frac{1}{3}-\frac{3}{2}x\right)^2=\left(\frac{3}{2}\right)^2\)
\(=>\frac{1}{3}-\frac{3}{2}x=\frac{3}{2}\)
\(=>\frac{3}{2}x=\frac{1}{3}-\frac{3}{2}=-\frac{7}{6}\)
\(=>x=-\frac{7}{6}:\frac{3}{2}=-\frac{7}{9}\)
Hi bernice, My name 's Linh, i'm from Viet Nam,I still study english as well, exactly about 7 months ago. At the first time, when i speak english with foreigner , you know, my heart seem to be broken and felling panic.... And i think we must keep our passion as well as don't be scared and worry.... Of course, day by day step by step, we 'll improve a lot .Okie right?
Today I would to talk about myself (or I am glad to introduce myself). I am Lan. I was born and grew up in a poor village but it is very peaceful. People here are very kind and friendly. And you know I love my village so much because there is my family there. My family has four people: my father my mother my older sister and I. My father is an engineer. He works for a good company in Hanoi. My mother is a teacher. She teaches me so much. My older sister is a student. We have a lot same points. She s reading comic books fishing collecting and I do too. Her enjoy color is red but I blue. She taught me how to live in a university environment how to make acquaintances with anyone and so on and I thank her for those. Thanks to her teaching I know much more and have so many friends. I always promise myself to try to study well in order to my family can be proud of me.
a) = ( 2h27' + 3h33' ):3 + 1h12'x2
= 6h:3 + 2h24'
= 2h + 2h24'
= 4h24'
b) = (3h45' + 3h45' ) : 2 - 1h30' : 2
= 7h30' : 2 - 45'
= 3h45' - 45'
= 3h
Bạn nhớ k cho mình nha >3
\(\Rightarrow20,5\times x=184,5\)
\(\Rightarrow x=184,5:20,5\)
\(\Rightarrow x=9\)
What subjects do you have today?
→ I have English, Science, Vietnamese and