Bài 1: a) 3/5+5/3-(-1/2)+1/-4 b)1/15+9/10+14/15-1/9-20/10+1/157 c) 1/3-3/4-(-3/5)+1/12-2/9-1/36+1/15 d)1/1.2+1/2.3+1/4.5+1/5.6+1/6.7 Bài 2: Tìm X 4/3-(x-1/5) = 3/10+1/2-1/6 Mình sẽ cho câu trả lời hay nhé

Làm giúp mình mấy câu này với ạ

tìm x, biết a. x *4,9 + x :10 = 18

Giải giúp câu cuối hộ thôi nha😘 Bài 4 đó nhé! Thank❤️

những kỉ niệm nào về tình bà cháu được gợi lại

Giải pt (x-4)^2 - /x-4/ = 0 / / là gtrị tuyệt đối

Cho 150 ml dung dịch NaOH 2M tác dụng với 6,4g SO2 cho biết sản phẩm sau phản ứng gồm những chất nào.

Thể tích hình hộp chữ nhật có chiều dài a, chiều rộng b, chiều cao a a) Với a= 12cm ; b= 5cm ; c= 7cm ,là............ b) Với a= 6,5m ; b= 4,5 ; c= 3m,là.................

Rút gọn biểu thức : P = √x+1 / x+2√x +1 - √x-1 / x-1 +1/2 ( với x >=0 , x khác 1)

1) They last visited their home village five years ago. => They have ................... 2) " When will you return the books to the library?" she asked me => she asked................. 3) The man was so surprised that he couldn't speak anything. => The man was too..................... 4) Brother/ buy /new computer / if / have / enough money. => ....................................... 5) Nam / not speak / english / fluently / as / friends. =>........................................ 6) Liz/ not send/ us / a letter / since / she / return/ to the USA. =>....................................... 7) Tet/be/ important festival / which / occur/ late january or early February. =>...................................... 8) A lot of trees/ will / plant / along the streets / students of Ngo Sy Lien high school. =>...................................... 9) The Ao dai is the ............. dress of Vietnamese women.( TRADITION) 10) We have to be ............. when riding our bikes on the streets. ( CARE) 11) The old man walked.............to the park.(SLOW) 12) They went to see most of the .......... plasces.(INTEREST) 13) His sudden ............must be a shock to her and her family.(DIE) 14) We can only get their by plane. There is no ............ ( CHOOSE) 15) There are many ...........programs at the Festival in Hue . ( CULTURE) 16) Doctors and..........have reported on how we are all affected by the noise around us.(SCIENCE) 17) The ............. between Vietnam and China is recovered.(FRIEND) 18) Many .............. activities will be held tomorrow.(CULTURE) 19) The ...............of the moon for the earth causes the tides.(ATTRACT) 20) Our team played ............We lost.(SUCCESS)