là chữ a

7200giây=2giờ

3,15giờ=3giờ9phút

2,8phút=168giây

36giờ=1,5ngày

1,2giờ=1 giờ12 phút

cái này kop pải toán ,olm xóa đi

k hieu

x thuộc Ư(4)={1;-1;2;-2;4;-4}

=>Có 7 số nguyên chia hết cho 4

III. verb tense

1. He joys (play) ................... volleyball

2. My grandmother (plant) ................. these roses next summer

3. There ( not be ) ................ a book on the table

4. Loan ( do ) ................ her assignments at the moment

mình cần gấp lắm giúp mình với nhé

II. Multiple choice

1. Your hair is .......... with my hair

A. different B. differ C.differently D. difference

2. She work in a library. She is a ...........

A. doctor B. farmer C. worker D. librarian

3. There is a big table ............. the middle of the room

A. in B. to C. on D. at

4. ............. do you go to the collector's club?

A. How B. How far C. How long D. How often

5. He practices ............. the piano every afternoon

A. play B. playing C. to play D. all are correct

6. We often go to English club ............. school

A. before B. during C. after D. until

7. What does this sign mean ?

A. No left turns permitted

B. left turns permitted after coming to a complete stop

C. No right turns allowed

D. left lane ends

8. What does this sign symbilize ?

A. No passing

B. Road closed ahead

C. No parking during daylight hours

D. No parking

Giúp mình với nhé

Ta có :\(A=\)\(\frac{6n-1}{3n+2}=\frac{6n+4-5}{3n+2}=2-\frac{5}{3n+2}\)

Để \(A\) có GTNN thì \(\frac{5}{3n+2}\) có\(GTLN\)

\(\Rightarrow\) \(3n+2\) có \(GTNN\)

\(\Rightarrow\) \(3n\) có \(GTNN\)

\(\Rightarrow\) \(n\) có \(GTNN\)

\(\Rightarrow\) \(n=0\)

lại thêm người tốn diện tích rồi, hại não quá

=1098