hỏi chấm cầm cái máy tính bấm kg được à thích bấm máy tính xịn chứ kg bấm máy tính cùi à

- Tên người : Lép Tôn-xtôi, Mô-rít-xơ, Mát-téc-lích, Tô-mát Ê-đi-xơn, Lê-o-na-đô-đa Vanh-xi.

- Tên địa lí: Hi-ma-lay-a, Đa-nuýp, Lốt Ăng-giơ-lét, Niu Di-lân, Công-gô.

cho mk hỏi là viết phiên dịch ra tiếng việt hay viết bằng tiếng anh

bạn lên mạng ý

còn ổn ko ban:>

tớ không ổn đang còn gấp

e ơi..đây là phân số hay là phép tính vậy ?? Hoàng Sơn Hùng

999999x11=10999989

nha 

bằng 10999989 nha

999 999 * 11 =10 999 989

1) 43 . 78 - 43 . 48 + 30 . 80 - 30 . 23

= 43.(78 - 48) + 30.(80 - 23)

= 43.30 + 30.57

= 30.(43 + 57)

= 30.100

= 3000

2) 31.175 - 31.50 + 69.125

= 31.(175 - 50) + 69.125

= 31.125 + 69.125

= 125.(31 + 69)

= 125.100

= 12500

3) 2.[(7 - 3¹³ : 3¹²) : 2² + 99] - 10²

= 2.[(7 - 3) : 4 + 99] - 100

= 2.(4 : 4 + 99) - 100

= 2.(1 + 99) - 100

= 2.100 - 100

= 200 - 100

= 100

4) 2²⁰¹⁹.2² : 2²⁰¹⁶ - 125 : 5² + 2019⁰

= 2²⁰²¹ : 2²⁰¹⁶ - 125 : 25 + 1

= 2⁵ - 5 + 1

= 32 - 4

= 28

A²=b.(a-c)-c.(a-b)

A²= ba - bc - ca + cb

A² = ( ba - ca ) + ( bc - cb ) 

A² = a. ( b - c ) + 0

Với a = -20 , b-c = -5  thì:

A² = a. ( b - c ) 

A² = -20 . ( - 5 )

A² = 100

Ta có : 100 = 10 . 10

\(\Rightarrow\)A = 10.

Vậy A = 10

~ HOK TỐT ~

Có b - c = ( - 5 )<=>\(b=c-5\)

Thay \(a=-20\),\(b=c-5\)vào \(A\)ta có

\(A^2=\)_{\(\left(c-5\right)\left(-20-c\right)-c\left(-20-c+5\right)\)}

     _{\(=-20c-c^2+100+5c-c\left(-15-c\right)\)}

   _{\(=100-15c-c^2+15c+c^2\)\(=100\)}

\(\Rightarrow A=10\)hoặc \(A=-10\)

My favourite hobby is reading. I enjoy reading a book when I am free. I
started to do it when I was four years old. The first time I did it, I felt interested. So I
kept reading. The teachers always taught me to read the difficult words. I was happy
when I read a story with a happy ending. I was thrilled when I read a detective story.
I enjoy reading because I to explore the imaginative world of my
favourite author, J.K.Rowling who writes “ Harry Potter” . There are a lot of
advantages of reading. Reading can make me relaxed and calm. I can also learn new
vocabulary items. Then I can further improve my English. Moreover, it can give me
an unlimited imagination, so I can write books in the future. I can learn the different
cultures and customs of other countries in the world too.
I read at least one hour every day. I read books by myself. I usually read it
at home. I wish I could read different kinds of books because it might be very
challenging.

                 Taiking about hobbies in more detail

     You can give more in for mation about your hobbies and interests:

" I arts and crafts . I ' m a creative / praal person, and doing things with my hands."

"I ' m an outgoing person, and socialising / hanging out with friends."

"I enjoy being physically active, and soend a lot of time playing sports and team games."

My favourite hobby is reading. I enjoy reading a book when I am free. I started to do it when I was four years old. The first time I did it, I felt interested. So I kept reading. The teachers always taught me to read the difficult words. I was happy when I read a story with a happy ending. I was thrilled when I read a detective story. I enjoy reading because I to explore the imaginative world of my favourite author, J.K.Rowling who writes “ Harry Potter” . There are a lot of advantages of reading. Reading can make me relaxed and calm. I can also learn new vocabulary items. Then I can further improve my English. Moreover, it can give me an unlimited imagination, so I can write books in the future. I can learn the different cultures and customs of other countries in the world too. I read at least one hour every day. I read books by myself. I usually read it at home. I wish I could read different kinds of books because it might be very challenging

\(\frac{16,2\cdot3,7+5,7\cdot16,2+7,8+4,8+4,6\cdot7,8}{11,2+12,3+13,4-12,6-11,5-10,4}\)\(=\frac{16,2\cdot(3,7+5,7)-7,8\cdot(4,8+4,6)}{(13,4-12,6)+(12,3-11,5)+(11,2-10,4)}\)

                                                                                     \(=\frac{16,2\cdot9,4-7,8\cdot9,4}{0,8+0,8+0,8}=32,9\)

~Chúc bạn học tốt

Mk ko chắc nữa

ta tach phep tinh do ra lam ahi ve .

ve A la phep tinh 16,2 * 3,7 +5,7 * 16,2 

ve B la phep tinh con lai

ve A = 16,2 *9( 3,7 + 5,7 ) = ........

ve B = 7,8 * (4, 8+ 4,6 )=.......

cuoi cung bang ve A + ve B la ra

cảm ơn bạn nhiều

GIÚP BẠN NGẮM CHỊU CÂU HỎI THIẾU SÓT CỦA BẠN HẢ, HIHI

Giúp gì bạn ???

k cho mình nha