Giúp với mình cần gấp1.Cho A= {x€ R/|x| ≤ 4}

TM

Thư Minh

5 tháng 7 2021

Giúp với mình cần gấp1.Cho A= {x€ R/|x| ≤ 4}; B={x€ R/ -5<x -1 ≤ 8}. Viết các tập hợp sau dưới dạng đoạn – khoảng- nữa khoảng R\(A ∪ B), A ∩ B, A\B, B\A2.Cho A= {x€ R/x^2 ≤ 4}; B={x€ R/ -2<x -1< 3}. Viết các tập hợp sau dưới dạng đoạn – khoảng- nữa khoảng R\(A ∪ B), A ∩ B, A\B, B\A3. Gọi N(A) là số phân tử của A. Cho N(A)=25, N(B)= 29,N(A∪B)=41. Tính N (A ∩ B),N (A\B),N...

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TM

Thư Minh

5 tháng 7 2021

Giúp với, mình cần gấp

1.Cho A= {x€ R/x ≤ -3 hoặc x>6}; B={x€ R/ x^2-25≤0}. Viết các tập hợpsau dưới dạng đoạn – khoảng- nữa khoảng

R\(A ∪ B), A ∩ B, A\B, B\A, R\(A ∩ B), R\(A\B)

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0

TN

trí ngu ngốc

11 tháng 11 2021

MN tính giúp mình với mình đang cần gấp,rất rất gấp

1+1=?
Nhanh lênnnnn

#Toán lớp 6

7

PN

Phạm Ngọc Bích

11 tháng 11 2021

Hả... 1+1=2

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NV

Nguyễn Văn Phúc

11 tháng 11 2021

=2

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NT

nguyen thao

15 tháng 5 2021

Giải chi tiết giúp mik 2 câu này vs mik đag cần gấp

1. a) \(\left\{{}\begin{matrix}x+y+xy=5\\x^2y+y^2x=6\end{matrix}\right.\)

b) \(9x^4+8x^2-1=0\)

#Toán lớp 9

1

NL

Nguyễn Lê Phước Thịnh

15 tháng 5 2021

b) Ta có: \(9x^4+8x^2-1=0\)

\(\Leftrightarrow9x^4+9x^2-x^2-1=0\)

\(\Leftrightarrow9x^2\left(x^2+1\right)-\left(x^2+1\right)=0\)

\(\Leftrightarrow\left(x^2+1\right)\left(9x^2-1\right)=0\)

mà \(x^2+1>0\forall x\)

nên \(9x^2-1=0\)

\(\Leftrightarrow9x^2=1\)

\(\Leftrightarrow x^2=\dfrac{1}{9}\)

hay \(x\in\left\{\dfrac{1}{3};-\dfrac{1}{3}\right\}\)

Vậy: \(S=\left\{\dfrac{1}{3};-\dfrac{1}{3}\right\}\)

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TD

tiến đạt

11 tháng 9 2021

mọi người giúp mình mình đang cần gấp

1.someone cleans my house every week.

=I...........

2.I asked my parents to pay for my flight home

=I.................

3.Our heater needs repairing

=we will.............

4.A beautician does her nails every week

=She...............

5.The dentist is filling her cavity now

=She.....................

#Tiếng anh lớp 8

1

DT

Đỗ Thanh Hải

CTVVIP

11 tháng 9 2021

1.someone cleans my house every week.

=I.....have my house cleaned......

2.I asked my parents to pay for my flight home

=I.......asked my flight home to be paid by my parents..........

3.Our heater needs repairing

=we will......have our heater repaired.......

4.A beautician does her nails every week

=She......has her nails done by a beautician.........

5.The dentist is filling her cavity now

=She......is having her cavity filled by the dentist...............

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F

Fong

18 tháng 11 2021

Giúp mình với mình đang cần gấp1. I wish that i (have)_______pet cat or dog.2. They wish they (not have)_______a test today.3. John wishes that he (know)________how to speak Spanish.4. It's raining! I wish I (not have to)________go outside now.5. My friend wished she (live)_______in Tokyo.6. I wish that my neighbors (not make)________so much noise.7. I'm sorry. I wish I (like)___________chocolate, but I don't!8. I like this restaurant. I wish that we (come)____________here more...

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#Tiếng anh lớp 9

1

H

htfziang

18 tháng 11 2021

1. I wish that i (have)___had____pet cat or dog.

2. They wish they (not have)__didn't have_____a test today.

3. John wishes that he (know)____knew____how to speak Spanish.

4. It's raining! I wish I (not have to)____didn't have to____go outside now.

5. My friend wished she (live)___lived____in Tokyo.

6. I wish that my neighbors (not make)___didn't make_____so much noise.

7. I'm sorry. I wish I (like)_____liked______chocolate, but I don't!

8. I like this restaurant. I wish that we (come)_______came_____here more often.

9. My teacher wishes I (not arrive)_____didn't arrive_________late for every class.

10. I have never seen snow. I wish it (snow)____snowed_______in Florida.

11. I think we should travel this summer. I wish that you (agree)_______agreed____with me.

12. We spend too much money. I wish that we (not spend)______didn't spend_____so much.

13. It's true, really! UFOs exist. I wish that you (believe)____believed_________me.

14. Emma loves to travel by air. She wishes she (fly)___flew__________all the time.

15. This coffee is awful! I wish it (not taste)________didn't taste_____so bad.

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NT

Nguyễn Trương Bảo Ngọc

27 tháng 10 2021

Mọi người giúp mình , mình đang cần gấp

1.They / refrigerator / right corner / room

2. Next to / refrigerator / there / a stoe

3.On the left side / stove / there / a sink

4. Next to / sink / there / a towel rack

5. Disk rack / beneath / shelves

6. Jars / sugar , tea / the shelves / the counter

7. In the middle / kitchen / there / table

8. Lighting fixture / above / table

#Tiếng anh lớp 8

1

MN

minh nguyet

27 tháng 10 2021

1. There is a refrigerator on the right corner of the room.

2. Next to the refrigerator, there is a stove

3. On the left side of the stove, there is a sink

4. Next to the sink, there is a towel rack

5. Dish rack and counter are to the right of window beneath of the shelves

6. Câu này thiếu thiếu gì đó?

7. In the middle of the kitchen are table and fours chairs

8. Lighting fixture is above the table and beneath of lighting fixture is vase with flowers.

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PM

Phạm Mạnh Kiên

7 tháng 8 2021

có ai bt làm bài này k giúp mình vs minh đang cần gấp1. So sánh ngang bằng. a. Mary/thin/her brother._______________________________________________b. A lemon/not sweet/ an orange. _______________________________________________c. A donkey/not run/quick/ a horse._______________________________________________d. This dress/twice/pretty/that one._______________________________________________e. They/ drive a car/ dangerous/ we. _______________________________________________2. So...

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có ai bt làm bài này k giúp mình vs minh đang cần gấp

1. So sánh ngang bằng.

a. Mary/thin/her brother.

_______________________________________________

b. A lemon/not sweet/ an orange.

_______________________________________________

c. A donkey/not run/quick/ a horse.

_______________________________________________

d. This dress/twice/pretty/that one.

_______________________________________________

e. They/ drive a car/ dangerous/ we.

_______________________________________________

2. So sánh hơn: (Nhấn mạnh các câu ss hơn)

a. this film /popular/ that one.

_______________________________________________

b. A bird/can fly/slow/ a plane.

_______________________________________________

c. Ba/ friendly/ Nam.

_______________________________________________

d .Your house/far/from school /my house. _______________________________________________

e. My father / drive/ careful/ I

_______________________________________________

3. So sánh nhất: (Nhấn mạnh theo 2 cách đã học)

a. This road/short /way/ in the city.

_______________________________________________

b. Lan/ walk/ slow / in my class.

_______________________________________________

c. Indian tea/bad/ of all.

_______________________________________________

d. Anna/ work/ simple/girl/ in the world. _______________________________________________

e. Jack/ can tell/ the stories/ humourous/ in the world.

_______________________________________________

II. Rewrite these sentences

1. This street is narrower than that one

Þ That street ……………………………………………..

Þ That street …………………………………………………

2. Linda drives more carefully than Peter

Þ Peter……………………………………………

Þ Peter…………………………………………………..

3.Your car is more convenient than mine

Þ My car ……………………………………………………..

Þ My car……………………………………………………..

4. We behave more politely than her

Þ She……………………………………………………….

Þ She ………………………………………………………

5.I cook better than my mother

Þ my mother……………………………………………………………..

Þ my mother ………………………………………………………………

6. Anna isn’t as confident as me

=> I …………………………………….

7. This book isn’t as boring as that one

Þ That book …........................................................

8. I don’t work as effectively as he does

=> He ………………………………………….

9. My bedroom isn’t so comfortable as yours

Þ Your bedroom……………………………..

10. John didn’t speak English as well as Mary

=> Mary ………………………………………….

11. Peter can dance the most gracefully in my city

=> No one………………………………………………….

=> No one………………………………………………

12. Kangaroo is the most unique animal in the world

=> No……………………………………………………..

=> No……………………………………………………….

13. No river in the world is longer than Nile

=> Nile …………………………………………………

14. No student in my class learns Maths more intelligently than John

=> John……………………………………………………………………

15. If you read many books, you will have much knowledge

→ The more …………………………………………………………………….

16. He speaks too much and people feel bored.

→ The more …………………………………………………………………….

#Tiếng anh lớp 9

0

PM

Phạm Mạnh Kiên

7 tháng 8 2021

có ai bt làm bài này k giúp mình vs minh đang cần gấp1. So sánh ngang bằng.a. Mary/thin/her brother._______________________________________________b. A lemon/not sweet/ an orange. _______________________________________________c. A donkey/not run/quick/ a horse._______________________________________________d. This dress/twice/pretty/that one._______________________________________________e. They/ drive a car/ dangerous/ we. _______________________________________________2. So...

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có ai bt làm bài này k giúp mình vs minh đang cần gấp

1. So sánh ngang bằng.

a. Mary/thin/her brother.

_______________________________________________

b. A lemon/not sweet/ an orange.

_______________________________________________

c. A donkey/not run/quick/ a horse.

_______________________________________________

d. This dress/twice/pretty/that one.

_______________________________________________

e. They/ drive a car/ dangerous/ we.

_______________________________________________

2. So sánh hơn: (Nhấn mạnh các câu ss hơn)

a. this film /popular/ that one.

_______________________________________________

b. A bird/can fly/slow/ a plane.

_______________________________________________

c. Ba/ friendly/ Nam.

_______________________________________________

d .Your house/far/from school /my house. _______________________________________________

e. My father / drive/ careful/ I

_______________________________________________

3. So sánh nhất: (Nhấn mạnh theo 2 cách đã học)

a. This road/short /way/ in the city.

_______________________________________________

b. Lan/ walk/ slow / in my class.

_______________________________________________

c. Indian tea/bad/ of all.

_______________________________________________

d. Anna/ work/ simple/girl/ in the world. _______________________________________________

e. Jack/ can tell/ the stories/ humourous/ in the world.

_______________________________________________

II. Rewrite these sentences

1. This street is narrower than that one

Þ That street ……………………………………………..

Þ That street …………………………………………………

2. Linda drives more carefully than Peter

Þ Peter……………………………………………

Þ Peter…………………………………………………..

3.Your car is more convenient than mine

Þ My car ……………………………………………………..

Þ My car……………………………………………………..

4. We behave more politely than her

Þ She……………………………………………………….

Þ She ………………………………………………………

5.I cook better than my mother

Þ my mother……………………………………………………………..

Þ my mother ………………………………………………………………

6. Anna isn’t as confident as me

=> I …………………………………….

7. This book isn’t as boring as that one

Þ That book …........................................................

8. I don’t work as effectively as he does

=> He ………………………………………….

9. My bedroom isn’t so comfortable as yours

Þ Your bedroom……………………………..

10. John didn’t speak English as well as Mary

=> Mary ………………………………………….

11. Peter can dance the most gracefully in my city

=> No one………………………………………………….

=> No one………………………………………………

12. Kangaroo is the most unique animal in the world

=> No……………………………………………………..

=> No……………………………………………………….

13. No river in the world is longer than Nile

=> Nile …………………………………………………

14. No student in my class learns Maths more intelligently than John

=> John……………………………………………………………………

15. If you read many books, you will have much knowledge

→ The more …………………………………………………………………….

16. He speaks too much and people feel bored.

→ The more …………………………………………………………………….

#Tiếng anh lớp 9

3

NH

Nguyễn Hoàng Minh

7 tháng 8 2021

1.

a) Mary is as thin as her brother.

b) A lemon is not as sweet as an orange.

c) A donkey cannot run as quick as a horse.

d) This dress is twice as pretty as that one.

e)They don't drive a car as dangerous as us.

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HH

Hoàng Hạnh Nguyễn

7 tháng 8 2021

1. So sánh ngang bằng.

a. Mary/thin/her brother.

Mary is as thin as her brother.

b. A lemon/not sweet/ an orange.

A lemon isn't as sweet as an orange.

c. A donkey/not run/quick/ a horse.

A donkey doesn't run as quickly as a horse.

d. This dress/twice/pretty/that one.

This dress is twice as pretty as that one.

e. They/ drive a car/ dangerous/ we.

They drive a car as dangerously as we do.

2. So sánh hơn: (Nhấn mạnh các câu ss hơn)

a. this film /popular/ that one.

This film is much more popular than that one.

b. A bird/can fly/slow/ a plane.

A bird can fly much more slowly than a plane.

c. Ba/ friendly/ Nam.

Ba is much more friendly than Nam.

d .Your house/far/from school /my house.

Your house is much farther from school than my house.

e. My father / drive/ careful/ I

My father drives much more carefully than I do.

3. So sánh nhất: (Nhấn mạnh theo 2 cách đã học)

a. This road/short /way/ in the city.

This road is by far the shortest way in the city.

b. Lan/ walk/ slow / in my class.

Lan walks by far the most slowly in my class.

c. Indian tea/bad/ of all.

Indian tea is by far the worst of all.

d. Anna/ work/ simple/girl/ in the world.

Anna works by far the simplest girl in the world.

e. Jack/ can tell/ the stories/ humourous/ in the world.

Jack can tell the stories by far the most humorously in the world.

II. Rewrite these sentences

1. This street is narrower than that one

Þ That street isn't as wide as this one.

Þ That street is wider than this one.

2. Linda drives more carefully than Peter

Þ Peter doesn't drive as carefully as Linda.

Þ Peter drives more carelessly than Linda.

3.Your car is more convenient than mine

Þ My car isn't as convenient as yours.

Þ My car is less convenient than yours.

4. We behave more politely than her

Þ She doesn't behave as politely as us.

Þ She behaves more impolitely than us.

5.I cook better than my mother

Þ my mother doesn't cook as well as me.

Þ my mother cooks worse than me.

6. Anna isn’t as confident as me

=> I am more confident than Anna.

7. This book isn’t as boring as that one

Þ That book is more boring than this one.

8. I don’t work as effectively as he does

=> He works more effectively than I do.

9. My bedroom isn’t so comfortable as yours

Þ Your bedroom is more comfortable than mine.

10. John didn’t speak English as well as Mary

=> Mary spoke English better than John.

11. Peter can dance the most gracefully in my city

=> No one in my city can dance as gracefully as Peter.

=> No one in my city can dance more gracefully than Peter.

12. Kangaroo is the most unique animal in the world

=> No animal in the world is as unique as kangaroo.

=> No animal in the world is more unique than kangaroo.

13. No river in the world is longer than Nile

=> Nile is the longest river in the world.

14. No student in my class learns Maths more intelligently than John

=> John learns Maths the most intelligently in my class.

15. If you read many books, you will have much knowledge

→ The more books you read, the more knowledge you will have.

16. He speaks too much and people feel bored.

→ The more he speaks, the more bored people feel.

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NN

Nguyễn Ngọc Quỳnh Chi

4 tháng 12 2021

Chọn từ gạch chân phát âm khác , giúp mình nhé , mình đg cần gấp1. A. peaceful B. historic C. convenient D. overseas 1..................2. A. palace B. statue C. share D. fantastic 2....................3. A. chopsticks B. things C. pictures D. tables 3....................4. A. wonder B. under C. compass D. waterfall 4....................5. A. torch B. sporty C. rock D. wardrobe...

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#Tiếng anh lớp 6

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