HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
Choose the letter A, B, C or D to complete the passage below
They widen the roads so cars and lorries can get to the village easily. They build a medical centre so people’s health can be looked (6) __________ at any time. They build a new school so their (7) __________ have better learning conditions. They build a bridge (8) __________ the river so villagers have a shorter way to town. They also build a football ground so their children can (9) __________ sports. In addition, they grown cash crops so people can export the crops and have more money.
I would like to become an agricultural engineer in the future so I can apply new technology to our farming and do more for the village (10) __________ our parents did.
Question 10:
A. as
B. like
C. so
D. similar
đm con xấu,chảnh,điệu,đũy,ngu lại còn bắt cá 2 tay
tui ko p thanh lê nhưng tui cung thiên bình nên ......
thằng long bi to đâu?
à mày đuổi nó rồi!
là long loz
có là fan nhưng mất hết hứng khi nhìn mặt con linh
3n + 8 chia hết cho n + 2
3n + 6 + 2 chia hết cho n + 2
Mà 3n + 6 chia hết cho n + 2
2 chia hết cho n + 2
n + 2 \(\in\) Ư(2) = {-2 ; -1 ; 1 ; 2}
n + 2= - 2 => n = - 4
n + 2 = -1 => n =-3
n + 2 =1 => n = -1
n + 2 = 2 => n = 0
Mà n là số tự nhiên nên n = 0
\(\frac{a}{4}=\frac{b}{7};5b=3c\Rightarrow\frac{b}{3}=\frac{c}{5}\)
\(\frac{a}{12}=\frac{b}{21}=\frac{c}{35}=\frac{2a-b+c}{2.12-21+35}=\frac{14}{38}=\frac{7}{19}\)
\(a=\frac{7}{19}.12=\frac{84}{19}\)
\(b=\frac{7}{19}.21=\frac{147}{19}\)
\(c=\frac{7}{19}.35=\frac{245}{19}\)