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a)Thể tích bể là:

     4x2,5x2,2=22(\(m^3\))=22000 (\(dm^3\))

  Bể đó chứa được số lít nước là:

     22000.1=22000(lít)

b)Thể tích lượng nước là:

     22x60%=13,2(\(m^3\))

   Chiều cao mực nước là:

     13,2:4:2,5=1,32(m)

            Đáp số:a)...

                        b)....

3 tháng 3 2023

cảm ơn bạn bé Sói nhiều ạ ><

 

VI. Supply the correct form of the word in parentheses. Television now ……1…… (play) such an important part in so many people’s lives. ……2…… (Obvious) television has both advantages and ……3…… (advantageous). In the first place, television is not only a ……4…… (convenience) source of ……5…… (entertain) but also a ……6…… (compare) cheap one. For a family of four, for example, it is ……7…… (convenience), as well as ……8…… (cheap) to sit ……9…… (comfort) at home, with...
Đọc tiếp

VI. Supply the correct form of the word in parentheses.

Television now ……1…… (play) such an important part in so many people’s lives. ……2…… (Obvious) television has both advantages and ……3…… (advantageous). In the first place, television is not only a ……4…… (convenience) source of ……5…… (entertain) but also a ……6…… (compare) cheap one. For a family of four, for example, it is ……7…… (convenience), as well as ……8…… (cheap) to sit ……9…… (comfort) at home, with ……10…… (practice) ……11…… (limit) entertainment available, than to go in search of ……12…… (amuse) ……13…… (where). There is no transport ……14…… (arrangement). All they have to do is ……15…… (turn) a knob, and they can see plays, films, operas and shows of every kind, not ……16…… (mention) ……17…… (politics) discussions and the latest ……18…… (excite) football matches. Some people, however, ……19…… (maintenance) that is ……20…… (preciseness) where the danger lies. The television ……21…… (view) needs to do nothing. He doesn’t even use his hand. There are many ……22…… (argue) for and against television. The poor ……23…… (qualify) of its programmes is often ……24…… (criticize)

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3 tháng 3 2023

O_o

 

4 tháng 3 2023

đổi : 8 phút 12 giây = 492 giây = \(\dfrac{41}{300}\) giờ

quãng đường mà xe lửa toa đầu vào đường hầm cho tới lúc toa cuối ra khỏi đường hầm là : 

 \(48\cdot\dfrac{41}{300}=\dfrac{164}{25}=6,56\left(km\right)\)

đổi : 6,56km = 6560 m

vậy quãng đường hầm dài là : 6560 - 120 = 6440 (m)

4 tháng 3 2023

thx❤❤

3 tháng 3 2023

What's your name ?

`=>` My name's ....

How are you ?

`=>` I'm fine.

How old are you ?

`=>` I'm ... years old.

3 tháng 3 2023

My name's/name is...

I'm fine/great.

I'm/I am 7 years old

3 tháng 3 2023

i'd viết tắt của từ i would

từ i'll viết tắt của từ i will

 

4 tháng 3 2023

Nhiều lúc thấy mấy từ viết tắt tiếng Anh này không hiểu nghĩa của nó thế nào ,nhờ có bạn giải nghĩa ,cảm ơn subjects nha !

2 tháng 3 2023

I spend 30 minutes driving to work everyday

It took Railey an hour to choose his new shoes

I spent five years studying in this university

It took Tom 6 hours to tidy his room

It often takes her 20 minutes to review her lesson before class

Jess spends 30 minutes removing her makeup everyday

It took me one hour and 40 minutes to watch ''EXIT'' movie in the cinema

It took them half an hour to walk to school

They spent half an hour walking to school

It took Son Naeun 5 days to visit Da Nang

It took her 20 minutes to wash her dog last week

2 tháng 3 2023

1.I spend 30 minutes driving to work everyday
2. It took Railey an hour to choose his new shoes
3.I spent five years studying in this university
4.It took Tom 6 hours to tidy his room
5.It took her 20 minutes to review her lesson before class
6.Jess spends 30 minutes removing her makeup everyday
7.It took me one hour and 40 minutes to watch the ''EXIT'' movie in the cinema
8.It took them half an hour to walk to school
=They spent half an hour walking to school
9. It took Son Naeun 5 days to visit Danang
10. It took her 20 minutes to wash her dog last week

2 tháng 3 2023

giúp với

 

 

2 tháng 3 2023

we met a football player last week 

(-) We didn't meet football player last week

(?) Did we meet football player last week?

she has gone to school since 2010 

(-) She hasn't gone to school since 2010

(?) Has she gone to school since 2010?