có mk nè 17 tỉ và vài nick nữa

bn lên google dịch đi

chu vi :5*2*3,14=31,4 cm

dien h :5*5*3,14=78,5 cm2

số lớn nhất : 999

số bé nhất : 0 

TBC : (999 + 0) : 2 = 499,5

3^(x-2)(x+4)=1=3⁰

=>(x-2)(x+4)=0

<=>x=2 hoặc x=-4

mà x<0=>x=-4

3^(x-2)(x+4)=1=3⁰

=>(x-2)(x+4)=0

<=>x-2=0 hoặc x+4=0

<=>x=2 hoặc x=-4

mà x<0=>x=-4

vậy x=-4

Sxq : 1,5 x 1,5 x 4 = 9 m2

Stp : 1,5 x 1,5 x 6 = 13,5 m2

\(\frac{y+5}{7-y}=\frac{2}{-5}\Rightarrow\left(y+5\right).\left(-5\right)=\left(7-y\right).2\Rightarrow-5y+\left(-25\right)=14-2y\Rightarrow y=-13\)

vậy y=-13

1.The first thing was a letter. He gave me that thing.
=>The frst thing that .......he gave me was a letter........
2. How nice she is!
=>What a ...........nice girl/ woman.....................
3. He felt happy with the toys.
=> The toys made..........him happy..........
4. The boy felt verry happy. His parents stayed home for the holiday that year.
=> The boy whose.........parents stayed home for the holiday that year felt very happy..........
5. A new stadium is being built for the Games.
=>They .............are building a new stadium for the Games.....………....

chu vi hình tròn là

3,5 x 2 x 3,14 = 21,98