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Câu 5:

a: Diện tích hình vuông là \(5^2=25\left(cm^2\right)\)

Câu 4: Đặt \(A=\overline{17x8y}\)

A chia hết cho 5 nên y=0 hoặc y=5

TH1: y=0

A chia hết cho 9

=>\(1+7+x+8+0⋮9\)

=>\(x+16⋮9\)

=>x=2

TH2: y=5

A chia hết cho 9

=>\(1+7+x+8+5⋮9\)

=>\(x+21⋮9\)

=>x=6

10 tháng 8 2017

giúp gì bạn???

10 tháng 8 2017

2. perfectly

3. fastly

4. carefully

5. nervous

6. fluent

7. badly

8. terrible

9. angrily

10. happy

10 tháng 8 2017

2. perfecly

3. fast

4. carefully

5. nervous

6. fluent

7. badly

8. terible

9. angrily

10. happy

10 tháng 8 2017

1. f

2. g

3. b

4. e

5. a

6. c

7. d

17 tháng 8 2017

Hỏi đáp Tiếng anh

18 tháng 2 2019

Reorder the following words to make meaningful sentences

1. it /travel/is/rush/because/in/so/on/to/

traffic /road/tiring /hours/jams/of

It is so tiring to travel on road in rush hours because of traffic jams

2.it /hour/to/took/office/yesterday /more/my /than/mother/an /to /go/her

It took my mother more hour than her to go to an office yesterday

3.from/Hochiminh city/traveling /not /time -consuming/to/by /Hanoi/airplane /is

Traveling by airplane from Hanoi to HCM City is not time -consuming

#Yumi

4 tháng 8 2017

1, c, on

2, , c , in

3, b, inside

4, c, themselves

5, d, should

6, b, because

7, d, orphanage

8, c, would

9, a, annoys

10, a ,. mechanic

15 tháng 8 2017

1. Their mother told them not to make so much noise.
2. The traffic policeman told me to show him my driving lience.
3. Mrs. Jackson asked Tim if he could give her a hand.
4. The lifeguard told the boys not to swim out to far.
5. Nam told the taxi driver to turn left at the first traffic light.
6. She told her son to go straight upstairs and get into bed.
7. The policeman told us not to touch anything in the room.

8. Mary asked John if he could carry her suitcase.

9. Mr Atkins said to David that he hadn't to leave the door unlocked.

10. I asked my neighbors to turn the music down.