V Fill in each numbered blank with a word from the box

When you throw things into the garbage , that garbage is taken to a garbage dump and it is usually buried ( 26) ........underground ........It is buried so that it will decompose . What is de-com-pose? Decompose means to separate into parts and over many years most garbage will ( 27) ...........disappear .........completely . That is why we bury garbage in the ground . The problem is some things we (28) .........throw .........away take a long time to decompose and that means we could run out of ( 29) .........room..... nderground to put all the garbage . Then what ? you will have to keep the garbage in your house ! Well , ( 30 ) ...........hopefully .........that won't happen because there is something you can so . You can ( 31) ...........recycle..............! What does that means ? The prefix " re" means " do again" and " cycle" is something that goes ( 32) ...........around ...............again and again . If you take something old that can be used again and make it (33)...........new ..............,you are recyclin

Đường chéo ngắn của hình thoi là:
            21 x 4/7 = 12(cm)

S hình thoi đó là:

            21 x 12 : 2 = 126(cm2) 

có tất cả 2 thứ tự là ab0 ; ba0

x²-7x+6

=x²-6x-x+6

=x(x-6)-(x-6)

=(x-1)(x-6)

Như ta đã thấy 120 = 2³ x 3 x 5

Vậy số lớn nhất là: 53222

k nhé

Mình thấy cách này là chuẩn rồi bạn nhé :))

Cách khác thì mình chưa nghĩ ra ^.^

Như thế này bạn nhé :))

Áp dụng bất đẳng thức Cosi, ta có : \(1=a+2b\ge2\sqrt{a.2b}=2\sqrt{2}.\sqrt{ab}\Rightarrow ab\le\left(\frac{1}{2\sqrt{2}}\right)^2=\frac{1}{8}\)

Vậy Max ab = \(\frac{1}{8}\)\(\Leftrightarrow\hept{\begin{cases}a+2b=1\\a=2b\end{cases}\Leftrightarrow\hept{\begin{cases}a=\frac{1}{2}\\b=\frac{1}{4}\end{cases}}}\)

Bạn cần thêm điều kiện a , b > 0 nhé!

x² - 7x + 6 = x² - x - 6x + 6 = x(x-1) - 6(x-1) = (x-1)(x-6)