K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

21 tháng 6

1 dislikes preparing

2 Do you enjoy doing

3 having

4 not socialising

5 explaining

6 fancies listening

7 loves spending

8 love trying

9 driving

10 not going

#\(yGLinh\)

25 tháng 6

1.my mother (dislike/prepare)...dislike preparing......the meals.

2 (enjoy/do).....Do you enjoy doing.....DIY in your freetime ?

3.I detest (have)..having.........a conversation with John

4.do you think Jane prefers (not socialise)....not socialising.....with other students ?

5.I don't mind (explain).....explaining...the problem again

21 tháng 6

Số chẵn nhỏ nhất từ 14 đến 48 là: 14

Số chẵn lớn nhất từ 14 đến 48 là: 48 

Số lượng số chẵn từ 14 đến 48 là:

(48 - 14) : 2 + 1 = 18 (số)

Số lẻ nhỏ nhất từ 14 đến 48 là: 15

Số lẻ lớn nhất từ 14 đến 48 là: 47 

Số lượng số lẻ từ 14 đến 48 là:

(47 - 15) : 2 + 1= 17 (số) 

3

a: \(\dfrac{-3}{5}+\dfrac{28}{5}\left(\dfrac{13}{56}-\dfrac{5}{24}+\dfrac{1}{7}\right)\)

\(=\dfrac{-3}{5}+\dfrac{28}{5}\left(\dfrac{39}{168}-\dfrac{35}{168}+\dfrac{24}{168}\right)\)

\(=\dfrac{-3}{5}+\dfrac{28}{5}\cdot\dfrac{28}{168}=\dfrac{-3}{5}+\dfrac{28}{5}\cdot\dfrac{1}{6}=\dfrac{-3}{5}+\dfrac{14}{15}\)

\(=\dfrac{-9}{15}+\dfrac{14}{15}=\dfrac{5}{15}=\dfrac{1}{3}\)

b: \(\dfrac{5}{7}\cdot\dfrac{11}{18}+\dfrac{3}{7}\cdot\dfrac{5}{18}+\dfrac{4}{9}\)

\(=\dfrac{5}{18}\left(\dfrac{11}{7}+\dfrac{3}{7}\right)+\dfrac{4}{9}\)

\(=\dfrac{5}{18}\cdot2+\dfrac{4}{9}=\dfrac{5}{9}+\dfrac{4}{9}=\dfrac{9}{9}=1\)

c: \(4\dfrac{5}{9}:\left(-\dfrac{5}{7}\right)+\dfrac{49}{9}:\left(-\dfrac{5}{7}\right)\)

\(=\left(\dfrac{41}{9}+\dfrac{49}{9}\right):\dfrac{-5}{7}=10\cdot\dfrac{-7}{5}=-14\)

d: \(\left(-\dfrac{3}{5}+\dfrac{4}{9}\right):\dfrac{7}{11}+\left(-\dfrac{2}{5}+\dfrac{5}{9}\right):\dfrac{7}{11}\)

\(=\left(-\dfrac{3}{5}+\dfrac{4}{9}+\dfrac{-2}{5}+\dfrac{5}{9}\right)\cdot\dfrac{11}{7}\)

\(=\left(-\dfrac{5}{5}+\dfrac{9}{9}\right)\cdot\dfrac{11}{7}=\left(-1+1\right)\cdot\dfrac{11}{7}=0\)

e: \(\dfrac{-3}{4}\cdot5\dfrac{3}{13}-0,75\cdot\dfrac{36}{13}\)

\(=\dfrac{-3}{4}\left(5+\dfrac{3}{13}+\dfrac{36}{13}\right)\)

\(=\dfrac{-3}{4}\cdot8=-6\)

f: \(\dfrac{1}{5\cdot8}+\dfrac{1}{8\cdot11}+...+\dfrac{1}{302\cdot305}\)

\(=\dfrac{1}{3}\left(\dfrac{3}{5\cdot8}+\dfrac{3}{8\cdot11}+...+\dfrac{3}{302\cdot305}\right)\)

\(=\dfrac{1}{3}\left(\dfrac{1}{5}-\dfrac{1}{8}+\dfrac{1}{8}-\dfrac{1}{11}+...+\dfrac{1}{302}-\dfrac{1}{305}\right)\)

\(=\dfrac{1}{3}\left(\dfrac{1}{5}-\dfrac{1}{305}\right)=\dfrac{1}{3}\cdot\dfrac{12}{61}=\dfrac{4}{61}\)

g: \(6\dfrac{5}{12}:2\dfrac{3}{4}-11\dfrac{1}{4}\left(\dfrac{1}{3}-\dfrac{1}{5}\right)\)

\(=\dfrac{77}{12}:\dfrac{11}{4}-\dfrac{45}{4}\cdot\dfrac{2}{15}=\dfrac{77}{12}\cdot\dfrac{4}{11}-\dfrac{3}{2}\)

\(=\dfrac{7}{3}-\dfrac{3}{2}=\dfrac{14}{6}-\dfrac{9}{6}=\dfrac{5}{6}\)

h: \(\left(\dfrac{3}{5}+0,415-\dfrac{3}{200}\right)\cdot2\dfrac{2}{3}\cdot0,25\)

\(=\left(0,6+0,415-0,015\right)\cdot\dfrac{8}{3}\cdot\dfrac{1}{4}\)

\(=1\cdot\dfrac{2}{3}=\dfrac{2}{3}\)

i: \(\dfrac{5}{16}:0,125-\left(2\dfrac{1}{4}-0,6\right)\cdot\dfrac{10}{11}\)

\(=\dfrac{5}{16}:\dfrac{1}{8}-\left(\dfrac{9}{4}-\dfrac{3}{5}\right)\cdot\dfrac{10}{11}\)

\(=\dfrac{5}{2}-\left(\dfrac{45}{20}-\dfrac{12}{20}\right)\cdot\dfrac{10}{11}=\dfrac{5}{2}-\dfrac{33}{20}\cdot\dfrac{10}{11}=\dfrac{5}{2}-\dfrac{3}{2}=\dfrac{2}{2}=1\)

21 tháng 6

cam on nha

 

\(C=\left(6-\dfrac{2}{3}+\dfrac{5}{16}\right)-\left(2+\dfrac{4}{3}-\dfrac{7}{8}\right)-\left(6-\dfrac{5}{8}+\dfrac{13}{12}\right)\)

\(=6-\dfrac{2}{3}+\dfrac{5}{16}-2-\dfrac{4}{3}+\dfrac{7}{8}-6+\dfrac{5}{8}-\dfrac{13}{12}\)

\(=\left(6-2-6\right)+\left(-\dfrac{2}{3}-\dfrac{4}{3}\right)+\left(\dfrac{5}{16}+\dfrac{7}{8}+\dfrac{5}{8}\right)-\dfrac{13}{12}\)

\(=-2-2+\left(\dfrac{5}{16}+\dfrac{12}{8}\right)-\dfrac{13}{12}\)

\(=-4-\dfrac{13}{12}+\dfrac{29}{16}=-\dfrac{157}{48}\)

21 tháng 6

\(C=\left(6-\dfrac{2}{3}-\dfrac{5}{10}\right)-\left(2+\dfrac{4}{3}-\dfrac{7}{8}\right)-\left(6-\dfrac{5}{8}+\dfrac{13}{12}\right)\)

\(=6-\dfrac{2}{3}-\dfrac{5}{10}-2-\dfrac{4}{3}+\dfrac{7}{8}-6+\dfrac{5}{8}-\dfrac{13}{12}\)

\(=\left(6-2-6\right)+\left(-\dfrac{2}{3}-\dfrac{4}{3}\right)+\left(\dfrac{7}{8}+\dfrac{5}{8}\right)+\left(\dfrac{-5}{10}-\dfrac{13}{12}\right)\)

\(=\left(-2\right)+\left(-2\right)+\dfrac{3}{2}+\dfrac{-19}{12}\)
\(=\left(-4\right)+\dfrac{18}{12}+\dfrac{-19}{12}\)

\(=\left(-4\right)+\dfrac{-1}{12}\)

\(=\dfrac{-48}{12}+\dfrac{-1}{12}\)

\(=\dfrac{-49}{12}\)

21 tháng 6

Số lẻ nhỏ nhất từ 1 đến 104 là 1

Số lẻ lớn nhất từ 1 đến 104 là 103 

Khoảng cách giữa 2 số lẻ là: 2

Từ 1 đến 104 có số lượng số lẻ là:

(103 - 1) : 2 + 1 = 52 (số) 

22 tháng 6

lấy số cuối - số đầu: khoảng cách +1 là ra

 

21 tháng 6

1 Ann facies doing DIY in her free time.

2 My father prefers not eating out.

3 Mr. Smith loves going shopping at weekend.

25 tháng 6

1 Ann fancies doing DIY in her free time

2 My father prefers not eating out

3 Mr Smith loves going shopping at weekend

\(B=\left(5-\dfrac{3}{4}+\dfrac{1}{5}\right)-\left(6+\dfrac{7}{4}-\dfrac{8}{5}\right)-\left(2-\dfrac{5}{4}+\dfrac{16}{5}\right)\)

\(=5-\dfrac{3}{4}+\dfrac{1}{5}-6-\dfrac{7}{4}+\dfrac{8}{5}-2+\dfrac{5}{4}-\dfrac{16}{5}\)

\(=\left(5-6-2\right)+\left(-\dfrac{3}{4}-\dfrac{7}{4}+\dfrac{5}{4}\right)+\left(\dfrac{1}{5}+\dfrac{8}{5}-\dfrac{16}{5}\right)\)

\(=-3+\dfrac{-5}{4}+\dfrac{-7}{5}=-3-1,25-1,4=-5,65\)

21 tháng 6

Olm chào em, em chưa hiểu chỗ nào em nhỉ?

2
21 tháng 6

a) \(\dfrac{-3}{100}>\dfrac{-50}{100}=-\dfrac{1}{2}\)

\(\dfrac{-2}{3}< \dfrac{-1,5}{3}=-\dfrac{1}{2}\)

\(\Rightarrow\dfrac{-3}{100}>\dfrac{-2}{3}\)

b) \(\dfrac{-3}{5}=\dfrac{-9}{15}\)

\(\dfrac{-2}{3}=\dfrac{-10}{15}\)

Mà:  - 9 > -10 

\(\Rightarrow-\dfrac{9}{15}>\dfrac{-10}{15}\)

hay `-3/5>-2/3` 

c) \(\dfrac{-5}{4}< \dfrac{-2}{4}=-\dfrac{1}{2}\)

\(-\dfrac{3}{8}>\dfrac{-4}{8}=-\dfrac{1}{2}\)

\(\Rightarrow-\dfrac{5}{4}< \dfrac{-3}{8}\) 

d) \(-\dfrac{2}{3}=\dfrac{1}{3}-1\)

\(-\dfrac{3}{4}=\dfrac{1}{4}-1\)

Vì: `1/3>1/4` 

`=>1/3-1>1/4-1` 

Hay `-2/3>-3/4` 

a: \(\dfrac{-3}{100}=\dfrac{-3\cdot3}{100\cdot3}=\dfrac{-9}{300};\dfrac{2}{-3}=\dfrac{-2}{3}=\dfrac{-2\cdot100}{3\cdot100}=\dfrac{-200}{300}\)

mà -9>-200

nên \(\dfrac{-3}{100}>\dfrac{-2}{3}\)

b: \(\dfrac{-3}{5}=\dfrac{-3\cdot3}{5\cdot3}=\dfrac{-9}{15};\dfrac{2}{-3}=\dfrac{-2}{3}=\dfrac{-2\cdot5}{3\cdot5}=\dfrac{-10}{15}\)

mà -9>-10

nên \(\dfrac{-3}{5}>\dfrac{2}{-3}\)

c: \(\dfrac{-5}{4}=\dfrac{-5\cdot2}{4\cdot2}=\dfrac{-10}{8};\dfrac{-3}{8}=\dfrac{-3}{8}\)

mà -10<-3

nên \(-\dfrac{5}{4}< -\dfrac{3}{8}\)

d: \(\dfrac{-2}{3}=\dfrac{-2\cdot4}{3\cdot4}=\dfrac{-8}{12};\dfrac{3}{-4}=\dfrac{-3}{4}=\dfrac{-3\cdot3}{4\cdot3}=\dfrac{-9}{12}\)

mà -8>-9

nên \(-\dfrac{2}{3}>\dfrac{3}{-4}\)

e: \(\dfrac{267}{-268}=\dfrac{-267}{268}>-1;-1=\dfrac{-1343}{1343}>\dfrac{-1347}{1343}\)

Do đó: \(\dfrac{267}{-268}>\dfrac{-1347}{1343}\)

f: \(\dfrac{2022\cdot2023-1}{2022\cdot2023}=1-\dfrac{1}{2022\cdot2023}\)

\(\dfrac{2023\cdot2024-1}{2023\cdot2024}=1-\dfrac{1}{2023\cdot2024}\)

Ta có: 2022<2024

=>\(2022\cdot2023< 2023\cdot2024\)

=>\(\dfrac{1}{2022\cdot2023}>\dfrac{1}{2023\cdot2024}\)

=>\(-\dfrac{1}{2022\cdot2023}< -\dfrac{1}{2023\cdot2024}\)

=>\(\dfrac{-1}{2022\cdot2023}+1< \dfrac{-1}{2023\cdot2024}+1\)

=>\(\dfrac{2022\cdot2023-1}{2022\cdot2023}< \dfrac{2023\cdot2024-1}{2023\cdot2024}\)

g: \(\dfrac{2022\cdot2023}{2022\cdot2023+1}=1-\dfrac{1}{2022\cdot2023+1}\)

\(\dfrac{2023\cdot2024}{2023\cdot2024+1}=1-\dfrac{1}{2023\cdot2024+1}\)

Vì \(2022\cdot2023+1< 2023\cdot2024+1\)

nên \(\dfrac{1}{2022\cdot2023+1}>\dfrac{1}{2023\cdot2024+1}\)

=>\(\dfrac{-1}{2022\cdot2023+1}< \dfrac{-1}{2023\cdot2024+1}\)

=>\(\dfrac{-1}{2022\cdot2023+1}+1< \dfrac{-1}{2023\cdot2024}+1\)

=>\(\dfrac{2022\cdot2023}{2022\cdot2023+1}< \dfrac{2023\cdot2024}{2023\cdot2024+1}\)

  Chọn từ phù hợp nhất để điền vào chỗ trống trong đoạn văn sau The ao dai the traditional dress of Vietnamese women, has a long history. In the early 17th century. Vietnamese clothing designers (1) _____________ changes to the design of the traditional Chinese costume, creating the early forms of the present ao dai. This creativity showed Vietnam s strong sense (2) _____________ independence. The ao dai, with different designs and materials, was worn by both men and...
Đọc tiếp

 

Chọn từ phù hợp nhất để điền vào chỗ trng trong đoạn văn sau

The ao dai the traditional dress of Vietnamese women, has a long history. In the early 17th century. Vietnamese clothing designers (1) _____________ changes to the design of the traditional Chinese costume, creating the early forms of the present ao dai. This creativity showed Vietnam s strong sense (2) _____________ independence. The ao dai, with different designs and materials, was worn by both men and women. Throughout the 21st century, there have been numerous changes in the design of the ao dal: from floral to checked patterns, the use of transparent fabric, the variations in the neck collar, the shortening of the gown's length and different colors of the loose pants. Over the years, (3) _____________ the coining of Western clothing for more convenience in daily activities of modern life, the ao dai has been there to Slay. Therefore. Vietnamese women go on (4) _____________ this unique dress, which is both traditional and fashionable and which (5) _____________ our rich culture to the world.

Câu 1:

A. wore                       B. made                      C. became                   D. did

Câu 2:

A. in                            B. in                             C. of                            D. by

Câu 3:

A. in spile of               B. despite of               C. because of              D. although

Câu 4:

A. wearing                  B. to wearing              C. wear                        D. worn

Câu 5:

A. creates                    B. introduces              C. improves                D. impresses

Chọn từ có phần in đậm phát âm khác với những từ còn lại

Câu 6:

A. get                          B. news                       C. lend                        D. spend

Câu 7:

A. fixes                        B. watches                  C. chores                     D. classes

Câu 8:

A. thank                      B. mother                   C. weather                  D. there

Câu 9:

A. sweet                      B. write                       C. wrong                     D. sword

Câu 10:

A. signed                     B. handed                   C. waited                    D. mended

3
21 tháng 6

Chọn từ phù hợp nhất để điền vào chỗ trống trong đoạn văn sau

The ao dai the traditional dress of Vietnamese women, has a long history. In the early 17th century. Vietnamese clothing designers (1) _____________ changes to the design of the traditional Chinese costume, creating the early forms of the present ao dai. This creativity showed Vietnam s strong sense (2) _____________ independence. The ao dai, with different designs and materials, was worn by both men and women. Throughout the 21st century, there have been numerous changes in the design of the ao dal: from floral to checked patterns, the use of transparent fabric, the variations in the neck collar, the shortening of the gown's length and different colors of the loose pants. Over the years, (3) _____________ the coining of Western clothing for more convenience in daily activities of modern life, the ao dai has been there to Slay. Therefore. Vietnamese women go on (4) _____________ this unique dress, which is both traditional and fashionable and which (5) _____________ our rich culture to the world.

Câu 1:

A. wore                       B. made                      C. became                   D. did

Câu 2:

A. in                            B. in                             C. of                            D. by

Câu 3:

A. in spite of               B. despite of               C. because of              D. although

Câu 4:

A. wearing                  B. to wearing              C. wear                        D. worn

Câu 5:

A. creates                    B. introduces              C. improves                D. impresses

Chọn từ có phần in đậm phát âm khác với những từ còn lại

Câu 6:

A. get                          B. news                       C. lend                        D. spend

Câu 7:

A. fixes                        B. watches                  C. chores                     D. classes

Câu 8:

A. thank                      B. mother                   C. weather                  D. there

Câu 9:

A. sweet                      B. write                       C. wrong                     D. sword

Câu 10:

A. signed                     B. handed                   C. waited                    D. mended

#\(yGLinh\)

29 tháng 6

Câu 1:

A. wore                       B. made                      C. became                   D. did

Câu 2:

A. in                            B. in                             C. of                            D. by

Câu 3:

A. in spile of               B. despite of               C. because of              D. although

Câu 4:

A. wearing                  B. to wearing              C. wear                        D. worn

Câu 5:

A. creates                    B. introduces              C. improves                D. impresses