1 + 1 = 2

Tk mình, mình tk lại

Cảm ơn bạn nhiều

Chúc bạn học giỏi!

( ^_^ )

|x - 5| - 27 = -6

|x - 5| = -6 + 27

|x - 5| = 21

\(\Rightarrow\hept{\begin{cases}x-5=21\\x-5=-21\end{cases}\Rightarrow\hept{\begin{cases}x=26\\x=-16\end{cases}}}\)

o x o = 0

k mình nha và kết bạn nữa mình hết lượt kết bạn rồi

chúc bạn một năm mới vui vẻ và hạnh phúc

HAPPY NEW YEAR

tích là :
     0 x 0 = 0

                đáp số : 0

869 * 97 + 859 * 3 + 10 * 3

= 869 * 97 + ( 859 + 10 ) * 3

= 869 * 97 + 869 * 3

= 869 *  ( 97 + 3 )

= 869 * 100

= 86900 

K mk mk k lại 

Read the passage .The dedicate the following sentences are True ,False

The internet has rapidly developed and become part of our daily life . It's a very fast and convenient way to get information . people use the internet for many purposes : education , communication , entertainment and commerce . the internet helps people communicate with friends and relatives by means of email or chatting. However , the internet has limitations . It is time - consuming and costly . It is also dangerous because of viruses and bad programs . besides , the internet users sometimes have to suffer various risks such as spam or electronic junk mail and personal information leaking . so , while enjoying surfing , be alert

1.The internet has slowly developed nowadays

-> F

2.People use the internet to get information

->T

3.More people use the internet for education

->T

4.The internet can't help people communicate with friends and relatives

-> F

5.viruses and bad programs are dangerous for the internet users

-> T

6.the internet users shouldn't spend a lot of time surfing the web a day

->T

mình biết nè kết bạn với mình đi mình gửi tin nhắn cho