\(\frac{561}{704}.\frac{39}{47}+\frac{561}{704}.\frac{8}{47}\)

\(=\frac{561}{704}.\left(\frac{39}{47}+\frac{8}{47}\right)\)

\(=\frac{561}{704}.1\)

\(=\frac{51}{64}\)

D) vì tia phân giác của 2 góc đối đỉnh là 2 tia đối nhau:

Mà At' là phân giác x'Ay' đối đỉnh với xAy có tia phân giác là At (gt)

Vậy At' và At là 2 tia đối nhau

=> 3^x + 3^x * 3 = 108 <=> 3^x (3+1) = 108 <=> 4*3^x =108 <=> 3^x = 27 <=> 3^x =3³ <=> x=3

vậy x=3

\(\frac{x}{4}=\frac{18}{x+1}\)

ta có : \(\frac{x.\left(x+1\right)}{4.\left(x+1\right)}=\frac{72}{4.\left(x+1\right)}\)

Mà 8 x 9 = 72

\(\Rightarrow x=8\)

thay vào đó ta được : \(\frac{8.\left(8+1\right)}{4.\left(8+1\right)}=\frac{72}{4.\left(8+1\right)}\)

          \(\frac{72}{36}=\frac{72}{36}\)

\(\Rightarrow\frac{72}{36}=\frac{8}{4};\frac{72}{36}=\frac{18}{\left(8+1\right)}\)

An important person who has influenced in my life in most positive way is my mother. Nothing in the world can compare with the true love and the care of my mother. She is not only my mother but also my friend and my great teacher. She taught me how to be brave, honest and kind to everyone. She also showed me how to give and take. Although she is very busy, she always spares her time for her family. She is always the first one to get up and prepare breakfast for us. She is the first person has to come up my mind and movatie whenever I have to cope with difficulties. In conclusion, in my heart always consider my mom as the most perfect woman in the world and I do want to say ''I love you, mom. I cannot live without you!''

giống trên nha bạn

Hiệu hai số tự nhiên đó là :

  25 x 2 + 1 = 51 

Số bé là :

 ( 999 - 51 ) : 2 = 474

Số lớn là :

 999 - 474 = 525

  Đáp số : ....

1. Mai spends ten minutes a day learning English.

->Learning English ................

2. I always go to school on time.

->I am....................................

3. Why isn't the car working now?

->What's...............................

4. How high is the Mount Everest?

-> What.............................

Mk đã chọn những câu khó nhất đối với mk.

Nếu ai giúp đc thì mk sẽ trả ơn đoàng hoàng.

Chiều mai trường mk thi lọc đội tuyển nên cũng hơi gấp.

Ta có :

\(1-\frac{20}{21}=\frac{1}{21}\)

\(1-\frac{2000}{2001}=\frac{1}{2001}\)

Vì : \(\frac{1}{21}>\frac{1}{2001}\) Nên : \(\frac{20}{21}< \frac{2000}{2001}\)