giúp em với ạaaa
viết phương trình đường tròn (C) có tâm I biết (C) tiếp xúc đường thẳng (Δ) : x + 2y - 8 = 0 tại điểm A có hoành độ = 2 và cắt đường thẳng (d) : 3x - y - 9 = 0 tại 2 điểm B, C sao cho tam giác IBC vuông.

Kết bạn nha, đăng tuyển

Tại sao sự phân chia tế bào chất ở tế bào thực vật lại khác tế bào động vật?

giúp em với ạaa em đang cần gấp

999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999

4 tấn 6 kg =4500kg+100kg

chắc vậy đó

Số thóc kho A còn lại là :

1 - 1/4 = 3/4 ( số thóc )

Số thóc kho B còn lại là :

1 - 1/5 = 4/5 ( số thóc )

Ta thấy :

3/4 = 12/16 

4/5 = 12/15

Coi số thóc kho A là 16 phần và kho B là 15 phần như thế .

số thóc kho A lúc đầu là :

465 : ( 15+  16 ) x 16 = 240 ( tấn )

Số thóc kho b chiếm luc đầu là :

465 - 240 = 225 ( tấn )

Đáp số : 240 tấn và 225 tấn

đúng thì k mk nha để mk còn biết

1a

2b

3e

4c

5f

6d