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1 . is
2. teaches
3. goes
4. starts
5. ends
6. has
7. watches
8. reads
9. works
10. goes
I have many subjects at school
I like English best of them
I practice speaking English with my friends
We have three English lessons a week
I want to be good at English
1,What is she doing with her food
2. What time does your class start ang end in the afternoon
3. Where is your father work
Câu 1 sai,mik sửa luôn rồi đấy k mik nha
\(\frac{6^5.35^7}{14^7.15^5}=\frac{2^5.3^5.5^7.7^7}{2^7.7^7.3^5.5^5}=\frac{5^2}{2^2}=\frac{25}{4}\)
Rút gọn A và B
\(A=\frac{3.21}{7.15}=\frac{63}{105}=\frac{3}{5}\)
\(B=\frac{49-7.49}{49.9}=\frac{-294}{441}=\frac{-2}{3}\)
Quy đồng 2 phân số có mẫu số chung :
\(\frac{3}{5}=\frac{3.3}{5.3}=\frac{9}{15}\)
\(\frac{-2}{3}=\frac{-2.5}{3.5}=\frac{-10}{15}\)
Vậy tổng của A và B là : \(\frac{9}{15}+\frac{-10}{15}=\frac{9+\left(-10\right)}{15}=\frac{-1}{15}\)
A= 3.21/7.15
A= 3.3.7/7.3.5
A= 3/5
B= 49-7.49/49.9
B= 49.(7-1)/49.9
B= 49.6/49.9
B= 6/9
B= 2/3
Ta có: A= 3/5
B= 2/3
=> A+B= 3/5 + 2/3
= 9/15 + 10/15
= 19/15
Vậy A +B= 19/15
Hơi khó nhìn
Thông cảm nhé !
1. we don't stay up late at night
2. my sister goes on a trip every year
3. 2 km isn't too far to jog
4. nam speaks english very well
1.had
3.phoned
2.bought
4.took
5.was
6.came,turned
7.didn do.went
8.did,start
9.was
10.win
1.have
2.bought
3.phoned/didn't answer
4.took
5.were
6.coming,turning,sitting,begining
7.didn't do,went
8.did,started
9.would be
10.won
\(=\frac{\left(2.3\right)^6.\left(5.7\right)^7}{\left(2.7\right)^4.\left(3.5\right)^5}=\frac{2^6.3^6.5^7.7^7}{2^4.7^4.3^5.5^5}=\frac{2^2.3.5^2.7^3}{1.1.1.1}=\left(4.25\right).3.7^3=100.3.343=102900\)
Là starts bạn nhé(^^^)
Đúng 100%
my english class started at 7:15