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a: UM=AU=2,5/2=1,25cm

VA=VE=AE/2=1,25cm

b: UV=1,25+1,25=2,5cm

19 tháng 1 2022

giải chi tiết ra nhé bạn

13 tháng 11 2016

V chan khong la 300000 km/s

24 tháng 11 2016

1080 triệu km/giờ

giúp em với ạ .em cảm ơn ạExercise 1: Rewrite the sentences, use the verbs in present passive form:1.     People use milk for making butter and cheese.➔Milk is used for making butter and cheese (by people)2.     The milkman brings bottles of milk to houses.➔Bottles of milk are brought to houses by the milkman.3.     Careless driving causes many accidents.➔ ………………………………………………………………………………………………………………..4.     Weeds cover the river bank. (bờ sông)➔...
Đọc tiếp

giúp em với ạ .em cảm ơn ạ

Exercise 1: Rewrite the sentences, use the verbs in present passive form:

1.     People use milk for making butter and cheese.

➔Milk is used for making butter and cheese (by people)

2.     The milkman brings bottles of milk to houses.

➔Bottles of milk are brought to houses by the milkman.

3.     Careless driving causes many accidents.

➔ ………………………………………………………………………………………………………………..

4.     Weeds cover the river bank. (bờ sông)

➔ ………………………………………………………………………………………………………………..

5.     People speak English all over the world.

➔ ………………………………………………………………………………………………………………..

6.     They don't use this house very often.

➔ ………………………………………………………………………………………………………………..

7.     Do they teach French in this school?

➔ ………………………………………………………………………………………………………………..

8.     They make a lot of beautiful toys from recycled plastic.

➔ ………………………………………………………………………………………………………………..

9.     The workers clean the streets every day.

➔ ………………………………………………………………………………………………………………..

10.                        Do they usually hold the concerts at the university?

➔ ………………………………………………………………………………………………………………..

 

Exercise 2: Rewrite these sentences, using the verbs in passive form with

                                    "will/ can/ should/ must + be + past participle/ V3."

1.     Some body will clean the room later.

➔ the room will be cleaned later.

2.     You mustn't open this parcel until Christmas Day.

➔ …………………………………………………………………………………………………………..…..

3.     They can't make tea with cold water.

➔ ………………………………………………………………………………………………………..……..

4.     The students will hold a meeting before the Teacher's Day.

➔ ………………………………………………………………………………………………………..……..

5.     People can recycle tires to make pipes or floor coverings.

➔ ………………………………………………………………………………………………………..……..

6.     They should send applications before December.

➔ ………………………………………………………………………………………………………..……..

7.     The manage must sign the contract today.

➔ ………………………………………………………………………………………………………..……..

8.     They will build the new bridge by the end of the year.

➔ ………………………………………………………………………………………………………..……..

9.     We should use cloth bags instead of plastic bags.

➔ ………………………………………………………………………………………………………..……..

10.                        We can use the garbage to make fertilizer.

➔ ………………………………………………………………………………………………………..……..

 

0
19 tháng 1 2022

\(a+a.\frac{3}{2}+a:\frac{2}{7}=252\)

=>\(a+a.\frac{3}{2}+a.\frac{7}{2}=252\)

=>\(a.\left(1+\frac{3}{2}+\frac{7}{2}\right)=252\)

=>\(a.\left(1+5\right)=252\)

=>\(a.6=252\)

=>\(a=42\)

Vậy \(a=42\)

A+Ax3/2+A:2/7=252

A+Ax3/2+Ax7/2=252

Ax(1+3/2+7/2)=252

Ax6=252

A=42

HT

16 tháng 2 2022

Tham Khảo 

Tôi là một chú gấu con. Một hôm, tôi xin phép mẹ vào rừng đi dạo. Tôi vừa đi vừa nhặt những quả thông nhỏ. Bỗng một quả thông rơi trúng đầu khiến tôi chao đảo và bị ngã. Chị sáo đi qua, thấy vậy liền cười lớn rồi hét thật to: “Ê gấu, chân vòng kiềng”. Cả đàn thỏ cũng hùa theo để trêu chọc. Tôi nghe thấy tất cả đều chê bai. Tôi xấu hổ lắm, chạy thật nhanh về nhà mách mẹ. Mẹ tỏ ra ngạc nhiên, rồi nói với tôi rằng đôi chân của tôi rất đẹp. Cả mẹ, bố và ông nội - người giỏi nhất vùng cũng có đôi chân vòng kiềng. Tôi nghe mẹ nói thì bình tâm trở lại. Tôi nghe lời mẹ rửa sạch chân tay, ăn bánh mật rồi sau đó vui vẻ vào rừng dạo chơi.

16 tháng 2 2022

Văn bản hay đoạn văn nào nhỉ ?

Mình cái đề Anh cơ bản vừa làm xong. Các bạn check giúp mình có sai câu nào không ạ. Cảm ơn!!! Link docs: https://docs.google.com/document/d/1VdSUSNFPdKgWN9h2PNOEt4zbPIu6UOMFkzGBtLVJvMA/edit?usp=sharingNỘI DUNG KIỂM TRAThere isn’t ....... milk in the jar. *someanymanyaThat shop doesn’t have ……….. kinds of cheese *muchmanysomeaChọn câu đúng *I play often basketball after workI often play basketball after workI play basketball often after workI play basketball after work...
Đọc tiếp

Mình cái đề Anh cơ bản vừa làm xong. Các bạn check giúp mình có sai câu nào không ạ. Cảm ơn!!! Link docs: https://docs.google.com/document/d/1VdSUSNFPdKgWN9h2PNOEt4zbPIu6UOMFkzGBtLVJvMA/edit?usp=sharing

NỘI DUNG KIỂM TRA

There isn’t ....... milk in the jar. *

some

any

many

a

That shop doesn’t have ……….. kinds of cheese *

much

many

some

a

Chọn câu đúng *

I play often basketball after work

I often play basketball after work

I play basketball often after work

I play basketball after work often

His jacket is ………. the wardrobe *

in

between

in front of

opposite

The children are having a party. ………… are happy *

They

We

You

I

You can read books and newspapers at a __________. *

coffee shop

movie theater

bank

library

Martin likes reading. ……………. father tells the story. *

He

It

Its

His

Chọn câu đúng *

Bill can drive his car

Bill can drive car his

Bill cans drive he car

Bill cans drive car he

Chọn từ khác *

board games

martial arts

weights

gymnastics

The TV is ………….. the cat and the dog *

in

up

down

between

How ……… eggs do you buy? *

many

much

does

do

You play rugby on a pitch. Where do you ………… badminton? *

do

play

go

take

Would you like ...... water, please? *

much

many

any

some

My sister is a pilot. She ________ all over the world. *

flys

flyes

flies

to fly

Chọn câu đúng *

How many strawberries are there?

How many strawberries is there?

How much strawberries are there?

How much strawberries is there?

He used to……. jogging every morning when he was a young boy. *

go

take

play

do

Chọn câu đúng *

Mother my cans make a cake

Mother my can make a cake

My mother can make a cake

My mother cans make a cake

He ________a big breakfast every morning *

doesn’t have

doesn’t has

don’t has

don’t have

You can have dinner and stay overnight ……………………. *

restaurant

hotel

supermarket

shopping mall

We go ………… the wall to see flowers *

through

along

past

in

What time ________ Lan ________ her classes every Friday? *

do/finish

does/finish

do/finishes

does/finishes

I have pictures of my family ……….. the wall in my room. *

in

under

on

behind

Chọn từ khác *

steak

soup

chicken

fish

He eats ……………… banana after his dinner. *

many

much

an

a

You can get money or traveler’s checks ………………….. *

train station

hotel

bank

library

Chọn câu đúng *

Is there some chicken?

Is there any chicken?

Are there many chicken?

Are there some chicken?

 I …………. the housework with my brother *

do

does

am do

am does

Chọn câu đúng *

She have two daughters

She has two daughters

She is have two daughters

She is has two daughters

Karate is a great exercise for me but learning how to ……. karate well takes a lot of time. *

play

take

do

go

Chọn câu đúng *

There is a parks

There is department store?

There is good coffee shops?

There is a movie theater

How ………….. flour do you need to make this cake? *

do

does

much

many

Tiffany and Rosy usually help their mom …….. the chores at the weekend. *

play

go

take

do

Chọn từ khác *

bread

milk

sandwich

bacon

Dumbo is an elephant. ………. is 2 months old. *

I

They

It

You

He doesn’t have …… rice *

some

a

many

much

Chọn từ khác *

sister

mother

teacher

father

She’d like ....... orange. *

an

a

many

some

Where do you live? What’s ………… address? *

you

your

I

my

You can buy a one-way or round-trip train ticket at a ………… *

library

bank

train station

restaurant

Chọn câu đúng *

There aren’t some tomatoes in the kitchen

There aren’t much tomatoes in the kitchen

There aren’t many tomatoes in the kitchen

There aren’t a tomatoes in the kitchen

1
5 tháng 1 2022

leu

 

39) Ta có: \(\sqrt{49-5\sqrt{96}}-\sqrt{49+5\sqrt{96}}\)

\(=\sqrt{49-20\sqrt{6}}-\sqrt{49+20\sqrt{6}}\)

\(=5-2\sqrt{6}-5-2\sqrt{6}\)

\(=-4\sqrt{6}\)

40) Ta có: \(\sqrt{35+12\sqrt{6}}-\sqrt{35-12\sqrt{6}}\)

\(=3\sqrt{3}+2\sqrt{2}-3\sqrt{3}+2\sqrt{2}\)

\(=4\sqrt{2}\)

41) Ta có: \(\sqrt{13+2\sqrt{42}}+\sqrt{13-2\sqrt{42}}\)

\(=\sqrt{7}+\sqrt{6}+\sqrt{7}-\sqrt{6}\)

\(=2\sqrt{7}\)

28 tháng 10 2023

5437,5347,5743,5734,5473,5374,3547,3745,3475,3457,3754,3574,4357,4375,4573,4537,4753,4735,7534,7543,7453,7435,7345,7354.

Ok chưa bạn?

28 tháng 10 2023

dễ mà , là : 5437, 5347, 5743 , 5734 , 4537 ,4357 , 4735 , 4753 , 3547,3457,3745,3754,7543,7453,7345,7354.rùi nha bạn , nhớ lời hứa nha bạn ơi

26 tháng 11 2021

Câu bj động hả

26 tháng 11 2021

za