`h, ( 4^3 . 225 . 2^10 )/( 125 . 2^9 . 8^3 )`
`= ( ( 2^2 )^3 . 5^2 . 3^2 . 2^10 )/( 5^3 . 2^9 . ( 2^3 )^3 )`
`= ( 2^6 . 5^2 . 3^2 . 2^10 )/( 5^3 . 2^9 . 2^9 )`
`= 3^2 /( 2^2 . 5 )`
`= 9/( 4 . 5 )`
`= 9/20`
`{4^3 .225.2^10}/{125.2^9. 8^3}`
`=` `{2^6.(3^2. 5^2).2^10}/{5^3. 2^9 .2^9}`
`=` `{2^16. 3^2. 5^2}/{5^3 .2^18}`
`=` `{1.3^2. 1}/{5.2^2}`
`=` `{3^2}/{5.2^2}`
`=` `9/5.4`
`=` `9/20`
Giúp mình với, ai nhanh nhất đứng nhất cho hay nhất
bố hơn con 30 tuổi tuổi con bằng 2/7 tuổi bố tính tuổi mỗi người
Cho tam giác ABC vuông tại A có AB bằng 6 cm AC bằng 8 cm đường cao AH và phân giác BD cắt nhau tại I (H thuộc BC, D thuộc AC) 1.Tính độ dài AD ,DC 2.Chứng minh tam giác ABC đồng dạng với tam giác HBA 3.Chứng minh AB/AI=CB/CD 4.Chứng minh IH/IA=AD/DC
Vẽ hình ảnh chúc thi tốt gửi tặng đến lớp tui Full màu Chúc cacban trong Hoidap247 thi tốt và đạt được những điểm số mà các bạn mong muốn
chia động từ I 1 I may (watch) .................a science fiction film on TV to night 2 This time next week,I (lie)................. on a beaxh on Phu Quoc Island 3 By the time we watched the film on TV,Lan (cook).............dinner 4 He tried very hard(finish).............the test yesterday England is not a large country. No town in England is very far from the sea ,and many English families spend their summer holidays at the seaside. There are no high mountains inEngland,no very long rivers and very large forests. There are many towns in England. No town is very far from another. The English countryside between the towns is like a carpets of many colors. In Spring and summer, the fields, meadows and forests are light green or dark green, and the gardens are green,red,blue,yellow and white with flowers Question 1 Is England a large country? 2 Where do many English families spend their summer holidays? 3 Are there many towns in England? 4 What is thế English contryside like? II Visual pollution has a greater effects on people than you may think. I remember when I went to a big city,I was really scared because so the buildings' wall.Then I looked up,and I saw a lot of power lines over my head. Although they were not dangerous, I still feel unsafe since I thought they might fall down. These things prevented. from enjoying the beautiful sights of the city. I also remember a time when I was a student at a university. Once I was so busy with my assignments that I did not tiy my room for two weeks. Looking at the messy room caused me so much stress that I did not want to study.Then I decided to clean the room and put my thing in their proper places.I also bought a small plats and placed it in a corner of the room. These simple actions increased my motivatedd and helped me to on my learning Questions. 1How did the author feel when she saw the power lines? 2. Why did she have that feeling? 3. What was she busy with? 4 What happened when she looked the messy room? 5 What did she do for her room?
vẽ công chúa ori đẹp nhé ko sao chép mạng
cây thuớc dạng hình tam giác có đáy là 12,2 cm chiều cao là 5 cm . tính diện tích. giải thích cac buớc luôn nha ♥
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