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CN
Cô Ngọc Anh
Giáo viên VIP
4 tháng 11 2024

Tế bào sinh dưỡng phân bào nguyên phân 1 lần tạo được 2 tế bào con thì sau 2 lần phân chia sẽ tạo được 2 x 2 hay 22 = 4 tế bào con em nhé.

4 tháng 11 2024

4con tế bào 

j: \(\left(5^7+7^5\right)\left(6^8+8^6\right)\left(2^4-4^2\right)\)

\(=\left(5^7+7^5\right)\left(6^8+8^6\right)\left(16-16\right)\)

\(=0\cdot\left(5^7+7^5\right)\left(6^8+8^6\right)\)

=0

k: \(\left(7^{50}+7^{29}\right)\left(5^{14}+5^{26}\right)\left(3^{35}\cdot3-9^{18}\right)\)

\(=\left(7^{50}+7^{29}\right)\cdot\left(5^{14}+5^{26}\right)\left(3^{36}-3^{36}\right)\)

\(=\left(7^{50}+7^{29}\right)\left(5^{14}+5^{26}\right)\cdot0=0\)

a: 48-3(x+5)=24

=>3(x+5)=48-24=24

=>\(x+5=\dfrac{24}{3}=8\)

=>x=8-5=3

b: \(2^{x+1}-2^x=32\)

=>\(2\cdot2^x-2^x=32\)

=>\(2^x=32=2^5\)

=>x=5

c: \(\left(15+x\right):3=3^3\)

=>\(x+15=3^3\cdot3=3^4=81\)

=>x=81-15=66

d: \(250-10\left(24-3x\right):15=224\)

=>\(\dfrac{2}{3}\left(24-3x\right)=250-224=26\)

=>\(24-3x=26:\dfrac{2}{3}=26\cdot\dfrac{3}{2}=39\)

=>3x=24-39=-15

=>\(x=-\dfrac{15}{3}=-5\)

5 tháng 11 2024

Nếu em là cậu bé trong câu chuyện Cây vú sữa, khi bị mẹ mắng, em sẽ lắng nghe và suy nghĩ về những điều mẹ nói thay vì giận dỗi bỏ đi. Em sẽ nhận ra mẹ chỉ muốn tốt cho em, vì mẹ luôn yêu thương và quan tâm em hết lòng. Em sẽ xin lỗi mẹ và cố gắng sửa lỗi để không làm mẹ buồn thêm lần nào nữa. Qua câu chuyện, em rút ra bài học rằng phải luôn yêu thương, trân trọng và biết ơn cha mẹ, vì cha mẹ là người luôn dành cho mình tình yêu thương vô điều kiện, vô giá.

3 tháng 11 2024

Mình chưa có tóm tắt, thành thật xin lỗi.

3 tháng 11 2024

Walk k thêm "s"

3 tháng 11 2024

 

Does Lan walks to school with her friends

→ Bỏ s, thêm dấu ?  
II. Give the correct form of the verbs 1. I (look) __________________ for Jack right now. Do you know where he is? 2. The boys (not/ play) __________________ football at the moment.  3. What______ your father (do) __________________ in the evening?                                                   4. My sister (ride) __________________ their bicycles to school now 5. There (be) __________________ a lamp on my...
Đọc tiếp

II. Give the correct form of the verbs

1. I (look) __________________ for Jack right now. Do you know where he is?

2. The boys (not/ play) __________________ football at the moment.

 3. What______ your father (do) __________________ in the evening?                                                  

4. My sister (ride) __________________ their bicycles to school now

5. There (be) __________________ a lamp on my desk.                                                     

6. My father (have) __________________ a big nose.                                                   

7. My brother (not walk) __________________ to work every day.                              

8.Look!  The girls (take) __________________ some photos in the park.                    

9.______Hanh usually (read) __________________ comic books in her free time?                 

10.There (be) __________________ some ceiling fans and a TV in my classroom         

III.                  Choose the best answer

1. My sister often  ______________ the shopping.

 A. do             B. does       C. make       D. makes

2. What is your ___________ subject at school?

A. like                    B. excited               C. excited               D. favourite

3. ___________ is the place where you can cook.

A. Living room       B. Kitchen              C. Bedroom            D. Hall

4. Duy __________ football for the school team.

A. has                     B. does                   C. plays                  D. studies

5. They usually watch TV, talk with their friends in the __________. 

A. kitchen               B. bathroom            C. bedroom             D. living room

6. I like__________ because I like reading stories.

A. literature            B. math                  C. physics               D. biology

7. Jane is healthy because she does ________ every day. 

A. football              B. basketball           C. judo                   D. badminton 

8. I love ______ lessons because I am good at singing and playing the piano. 

A. geography          B.  biology              C. physics               D. music

9. My father is watching TV in the ______ while my mother is cooking in the kitchen.

A. living room        B. balcony              C. bathroom            D. garden

10.  “What are you doing this afternoon?” - “I don’t know, but I’d like to ______ football”

A. have                     B. do                         C. play                      D. go  

11. My shop is in front of _________ house 

A.  Vinh             B. Vinh’s                C. Vinhs’       

12. - “Do you sometimes have breakfast at the restaurant?” - “______

a.     Yes, I do   B. Yes, you do  C. No, I am not      D. No, you don’t

13. He _________ goes fishing in the winter. It’s too cold.

a.     often   B. always     C. usually

D. of Vinh

_

D. never

 14. “Would you like a cup of coffee?”      - “_________”.

A. Yes, I’d love to B. You are welcome C. Yes, I do 

D. Yes. I like.

15.Why don’t we _______chess this afternoon?

A. played       B. playing                   C. play                         D. plays  

. Read the following passage, then choose the correct answer. 

Mrs. Baker usually doesn’t have breakfast. She has only some biscuits and a cup of coffee and then she catches the bus to work at about 7.30 a.m. She has lunch in the canteen of her office. She usually has bacon, eggs, bread and butter with some salad. She likes all of the food in the canteen and she thinks they serve well with reasonable price. She comes home at 6.30 p.m and enjoys dinner with her family. She goes to bed at 11 p.m.

1. What does Mrs. Baker have for breakfast?

A.  Mrs. Baker has only some biscuits and a cup of coffee.

B.  Mrs. Baker has only some fruits and a cup of coffee.

C.  Mrs. Baker has only some biscuits and a cup of tea.

D.  Mrs. Baker has only some fruits and a cup of tea.

2. Mrs. Baker catches the bus to work ________________.

A. at 6.30 a.m             B. at about 7.30 a.m     C. at 7.30 a.m          D. at about 6.30 a.m

3. The price of the food in the canteen ________________.

A. is cheap             B. is reasonable      C. are reasonable    D. are cheap

4. Mrs. Baker comes home ________________ and enjoys dinner ________________.

A. at 6.30 p.m - with her friends            B. at 7.30 p.m - with her family

C. at 7.30 p.m - with her friends           D. at 6.30 p.m - with her family Bài 5. II. Read the following passage, then choose the correct answer. 

My name’s Thanh. One of my best friends is Phuong. He is my classmate and we always go to school together. Phuong is twelve. He’s tall and rather thin. He has short curly black hair and brown eyes. Phuong is funny and friendly. He is also very sporty and plays football very well. We often play football at the weekend. He loves listening to music and playing the guitar.

Phuong doesn’t like computer games. Phuong is a very good student. His favourite subject is Maths. He’s not good at Science but he studies hard to pass it.

1. What is the title of the passage? 

A. my teacher                   B. my school          C. my best friend            D. my class

2. What color are Phuong’s eyes? 

A. brown                          B. black                  C. green                            D. blue

3.  Which of the following things is not True about Phuong?

A. He loves playing football.                           B. He loves listening to music. C. He loves playing the guitar.             D. He loves playing computer games.

4.  What does the word "it" in line five refer to? 

A. maths                           B. science               C. computer                      D. music

III. Complete the following sentences

1. She/ listen/ music/now

2. How many / lessons/ you / have / Friday/ ? 

@ 3. My mother/ always/ do/ the washing.

4. She / like / study/ English and Maths.

5. My / favorite subject / school/ Maths/.

6. How about/ collect/ eggs/ the garden/.

7. Our grandparents / watch / TV / living room/ the moment

8. There/ a picture / the wall/ living room.

9. is / He / cutting  / house / the / front / trees /

10. family? / many / How / people / Linh’s / there

IV. Rewrite the following sentences without changing the meaning

1. My school has a library.

There is ___________________________________________________________________

2. She has blond hair.

Her hair is  ________________________________________________________________

3. Let’s go to the zoo on the weekend.

What about________________________________________________________________

4. 10. This school is beautiful

-> It’s_____________________________________________________. 

5.  We have a living room, a bedroom, a bathroom and a kitchen in our house 

There ____________________________________________________________________

6.    My favorite subject is English. 

I   ________________________________________________________________________

 

 

5
28 tháng 10 2024

II. Give the correct form of the verbs

1. I (look) __________am looking________ for Jack right now. Do you know where he is?

2. The boys (not/ play) _______are not playing___________ football at the moment.

 3. What___does___ your father (do) _________do_________ in the evening?                                                  

4. My sister (ride) _________is riding_________ their bicycles to school now

5. There (be) ______is____________ a lamp on my desk.                                                     

6. My father (have) _________has_________ a big nose.                                                   

7. My brother (not walk) _______doesn't walk___________ to work every day.                              

8.Look!  The girls (take) ______are taking____________ some photos in the park.                    

9.__Does____Hanh usually (read) _______read___________ comic books in her free time?                 

10.There (be) _____are_____________ some ceiling fans and a TV in my classroom         

28 tháng 10 2024

III.                  Choose the best answer

1. My sister often  ______________ the shopping.

 A. do             B. does       C. make       D. makes

2. What is your ___________ subject at school?

A. like                    B. excited               C. excited               D. favourite

3. ___________ is the place where you can cook.

A. Living room       B. Kitchen              C. Bedroom            D. Hall

4. Duy __________ football for the school team.

A. has                     B. does                   C. plays                  D. studies

5. They usually watch TV, talk with their friends in the __________. 

A. kitchen               B. bathroom            C. bedroom             D. living room

6. I like__________ because I like reading stories.

A. literature            B. math                  C. physics               D. biology

7. Jane is healthy because she does ________ every day. 

A. football              B. basketball           C. judo                   D. badminton 

8. I love ______ lessons because I am good at singing and playing the piano. 

A. geography          B.  biology              C. physics               D. music

9. My father is watching TV in the ______ while my mother is cooking in the kitchen.

A. living room        B. balcony              C. bathroom            D. garden

10.  “What are you doing this afternoon?” - “I don’t know, but I’d like to ______ football”

A. have                     B. do                         C. play                      D. go  

11. My shop is in front of _________ house 

A.  Vinh             B. Vinh’s                C. Vinhs’       

12. - “Do you sometimes have breakfast at the restaurant?” - “______

a.     Yes, I do   B. Yes, you do  C. No, I am not      D. No, you don’t

13. He _________ goes fishing in the winter. It’s too cold.

a.     often   B. always     C. usually

D. of Vinh

_

D. never

 14. “Would you like a cup of coffee?”      - “_________”.

A. Yes, I’d love to B. You are welcome C. Yes, I do 

D. Yes. I like.

15.Why don’t we _______chess this afternoon?

A. played       B. playing                   C. play                         D. plays  

2 tháng 11 2024

are there many flowers to the right of the museum ?
Em lớp 5 nên ko bt làm đã đúng chx ạ

2 tháng 11 2024

are there many flowers to the right of the museum?
chắc là như vậy ạ

1 tháng 11 2024

có vì:

24 chia hết cho 8

46-14=32 chia hết cho 8

nên 46+24-14 chia hết cho 8

ko lo sợ sai nhé vì mình học lớp 7

1 tháng 11 2024

có. vì: 46+24-14 = 24+(46-14) = 24+32 = 8(3+4) 

vì 8\(⋮\)8 nên 8(3+4)\(⋮\)8 hay 46+24-14\(⋮\)8

1 tháng 11 2024

sos nhanh mn

 

1 tháng 11 2024

cíu bé