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9 tháng 3 2020

tớ k cho

9 tháng 3 2020

https://i.imgur.com/6JibVkl.png 

mk nhầm câu trả lời

link

Chia động từ trong ngoặc ở thì hiện tại hoàn thành hoặc thì quá khứ đơn.1.  You ever (see) UFOs?2 . The plumber (not check) the pipes yet.3.  – When you last (phone) him? – Some weeks yet.4. This is the first time I (eat) hamburger.5. We (use) these energy-saving bulbs for a long time.6. I just (visit) my hometown where I (be) born.7. They (not see) their teachers since their farewell party in 2004.8. I (begin) to study English when I (be) eight years...
Đọc tiếp

Chia động từ trong ngoặc ở thì hiện tại hoàn thành hoặc thì quá khứ đơn.

1.  You ever (see) UFOs?

2 . The plumber (not check) the pipes yet.

3.  – When you last (phone) him? – Some weeks yet.

4. This is the first time I (eat) hamburger.

5. We (use) these energy-saving bulbs for a long time.

6. I just (visit) my hometown where I (be) born.

7. They (not see) their teachers since their farewell party in 2004.

8. I (begin) to study English when I (be) eight years old.

9. She (be) very busy since she (get) a part-time job.

10. You ever (be) to Ba Na hill? –Yes, I (go) there some months ago.

11. Jeans (become) popular since they first (appear) in Europe.

12. How long she (have) that Casio watch? – For nearly two years.

13. Mary (taste) a lot of delicious food when she (visit) Hue some years ago.

14. How long you (own) this car? – Since I (move) to this town.

15. Minh (start) to write to his pen pal in 2007, but they never (meet) each other.

16. Peter (not keep) in touch with us since he (join0 the army.

17. You ever (attend) an English Speaking contest in your school?

18. Someone (break) into the shrine and (take) a golden statue away.

19. My elder brother (leave0 university in 1998, but he (not get) a suitable job until 2000.

20. – You ever (make) an apple cake before? - Yes, I (make) one last week on my father's birthday.

nhanh mk tick

1
9 tháng 3 2020

1.Have you ever seen UFOs?

Rewrite the second sentences in the ways that its meaning stay the same1 Long is a bad swimmer=>Longswims..................2 My brother cycles slowly=>My brother is .........................3 Mr.Cuong plays table tennis well=>Mr.Cuong is.............................4 Mrs.Chi is a quick typist=>Mrs.Chi types.........................5 Thoa singing smoothly => Thoa is..........................6 Miss Lan is a fast runner =>Miss Lan runs...............................7 Mr.Hung is safe driver =>...
Đọc tiếp

Rewrite the second sentences in the ways that its meaning stay the same

1 Long is a bad swimmer

=>Longswims..................

2 My brother cycles slowly

=>My brother is .........................

3 Mr.Cuong plays table tennis well

=>Mr.Cuong is.............................

4 Mrs.Chi is a quick typist

=>Mrs.Chi types.........................

5 Thoa singing smoothly 

=> Thoa is..........................

6 Miss Lan is a fast runner 

=>Miss Lan runs...............................

7 Mr.Hung is safe driver 

=> Mr.Hung drivers...........................

8 Minh's sister dances marvelously

Minh's sister is...........................................

9 Mrs.Oanh cooks well

=> Mrs.Oanh is ..............................

10 Khanh is a fluent English speaker 

=> Khanh speaks ............................

11 Mr.Thanh couldn't enjoy the meal because of the stomachache

=>The stomachache prevented............................

12 What is your daughter's age, Mrs.Mai?

=>How...........................................

13 You shouldn't eat too much meat

=>You'd...............................................

14 How heavy is the chicken?

=>What............................................

15 I get to work in half an hour 

=> It takes ........................................................

16 How much is this dictionary ?

=> How much does ..............

17 There are over eight hundred stamps in Tim's collection

=> Tim's collection....................................................

18 The black car is cheaper than the red car

=> The red car ......................................

19 There is a sink a tub and a shower in a bathroom

=> The bathroom..............................................

20 No one in the group is taller than Trung 

Trung...............................................

 

9

1 Long is a bad swimmer

=>Long swims..badly................

2 My brother cycles slowly

=>My brother is .....a slow cyclist....................

3 Mr.Cuong plays table tennis well

=>Mr.Cuong is...a good table tennis player..........................

4 Mrs.Chi is a quick typist

=>Mrs.Chi types.quickly........................

5 Thoa singing smoothly 

=> Thoa is..a smooth singer........................

9 tháng 3 2020

Ta có: 4a× 9b ×c = bc×ac×ab

36abc= (abc)2

36 × (abc) = ( abc)× (abc)

36=abc

=>c×c=36 (ab=c)

c2=62

=>c = 6=>ab=6 (ab=c)

Mà bc=4a =>a= \(\frac{bc}{4}\)=>\(\frac{6b}{4}\) = \(\frac{6}{4}\)× b

=> \(\frac{6}{4}\) × b2 = 6

=>b2=6: \(\frac{6}{4}\)= 6×\(\frac{4}{6}\)= 4=22

=> b= 2

Lại có: ac=9b => a= \(\frac{9b}{6}\)=3/2 × 2=3

Vậy a=3;b=2;c=6
 

9 tháng 3 2020

ai giúp mik vs ahihi

viết rõ ra đc k,km k hiểu?????

9 tháng 3 2020

tớ ko mún giải . Bạn đặt \(\frac{a}{c}=\frac{c}{b}=k\)  =>  a=ck ; c=bk  và thay vào thui .  

Ta có: \(\frac{a}{c}=\frac{c}{b}\Rightarrow\left(\frac{a}{c}\right)^2=\left(\frac{c}{b}\right)^2\Rightarrow\frac{a^2}{c^2}=\frac{c^2}{b^2}=\frac{a^2+c^2}{c^2+b^2}\left(1\right)\)

Lại có: \(\left(\frac{a}{c}\right)^2=\frac{a}{c}.\frac{a}{c}=\frac{a}{c}.\frac{c}{b}=\frac{a}{b}\left(1\right)\)

Từ (1) và (2) \(\Rightarrow\frac{a^2+c^2}{c^2+b^2}=\frac{a}{b}\)

\(\Rightarrowđpcm\)

9 tháng 3 2020

giúp mình cái mình đang cần gấp

Give the correct form of the words. 1. Nowadays, there are many badminton ( compete ) ..................... and even a World Cup2. Their ( friend ) ........................... has lasted a life time.3. My mother liked the ( perform ) ......................... of that young pianist.4. Don't wait for him. He is ( beliveve ) ................................5. After the ( music ) ....................... stopped playing, the audience stood and clapped their hands.6. We couldn't see the plane...
Đọc tiếp

Give the correct form of the words.

 

1. Nowadays, there are many badminton ( compete ) ..................... and even a World Cup

2. Their ( friend ) ........................... has lasted a life time.

3. My mother liked the ( perform ) ......................... of that young pianist.

4. Don't wait for him. He is ( beliveve ) ................................

5. After the ( music ) ....................... stopped playing, the audience stood and clapped their hands.

6. We couldn't see the plane because it ( appear) ...................... behind the cloud.

7. There is a serious ( short ) ........................... of playgrounds for children in big cities.

8. I think it is a good ( choose ) ............................. in this circumstance.

9. Vesak day is a ( religion ) ................................ festival for people who follow Buddhism.

10. The students are ( care ) ................................. prepared for the final exam.

 

2
9 tháng 3 2020

1. competitions

2. friendship

9 tháng 3 2020

1. competitions

2. friendship

3. performance

4. unbelieved

5. musician

6. disappeared

7. shortage

8. choice

9. religious

10. carefully

Trc khi tớ lm mong cậu đọc cho ''-.-'' : It's too long, I only did 3 sentences

1, I don’t candies either.

=> Neither do I durians

2, My sister usually plays badminton skillfully

=> My sister is usually a skillful badminton player

3, How much were these “chung” cakes?

=> What was the cost of these "chung" cake?