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21 tháng 8 2021

1. always

2. hardly 

3. almost always

4. never

5. rarely 

6. hardly ever

7. always

8. never

9. sometimes

10. almost always

11. usually 

22 tháng 8 2021

Đáp án :

1.My brother is never sad. He's always happy

2.I was late for work only once in the past year. I'm almost never late

3.Mary failed a test in high school. She almost always passed the tests

4.I always remember to do my homework. I never forget to do this.

5.Steven rarely goes to the movies. He hardly ever sees movies

6.Judy saw a doctor for the first time in three years. She hardly ever gets sick

7.I wake up at five o'clock, seven days a week. I always wake up early.

8.It's  always warm and sunny where I live. That's why I never see snow

9.A: Do you already drink coffee? B: Yes, but only sometimes, not often. Only a few times a week

10.My sister almost never eats hamburgers and fries. She almost always eats healthy foods.

11.I usually take a bus to class, maybe three or four days a week

4 tháng 1 2022

đường hô hấp

4 tháng 1 2022

đường hô hấp

23 tháng 12 2021

9 nghìn đồng

24 tháng 12 2021

9 nghìn đồng

AH
Akai Haruma
Giáo viên
21 tháng 9 2021

Bài 7:

Ta thấy: $\widehat{xOy}+\widehat{yOx'}=\widehat{xOx'}=180^0$

$\widehat{xOy}-\widehat{yOx'}=30^0$

$\Rightarrow \widehat{yOx'}=\frac{180^0-30^0}{2}=75^0$

$\widehat{xOy'}=\widehat{yOx'}=75^0$ (hai góc đối đỉnh)

AH
Akai Haruma
Giáo viên
21 tháng 9 2021

Bài 8:

$\widehat{AOC}+\widehat{BOD}=140^0$

$\widehat{AOC}=\widehat{BOD}$ (hai góc đối đỉnh)

$\Rightarrow \widehat{AOC}=\widehat{BOD}=\frac{140^0}{2}=70^0$

$\widehat{COB}=180^0-\widehat{AOC}=180^0-70^0=110^0$

$\widehat{DOA}=\widehat{COB}=110^0$ (hai góc đối đỉnh)

17 tháng 7 2021

Câu 12 D là cửa hàng tạp hóa mà. nên câu đó chọn A

15 thì insisted that + V nguyên ko to nên câu này chọn A

5 tháng 11 2021

2 she had got the price of the contest, she would be happy now

3 I had gone to the concert last night ,I would be tired

4 John had finished all his homework, he could see a movie now

5 we had listened to my mother, we wouldn't be in trouble right now

Ex5

1 you arrive at the offcie earlier than I do, please turn on the air-conditioner

2 Were it not snowy, the children would go to school

3 he not died so young, he would be a famous musician

4 Were I you, I would take care of my car

5 not very bad-tempered, his wife would give him soon are marrage

6 Had she not got married at such an early age, he would be at university

Bạn ơi, bạn chụp hình lại đi bạn

11 tháng 8 2021

undefinedđây bạn😀

16 tháng 8 2021

các bn ơi...!!khocroi

16 tháng 8 2021

à mình nhầm!!! đó là sách lớp 6 nha mn. ko phải lớp 5 đâu ạ. mong mn giúp !!! khocroi

1: A=-1/2*xy^3*4x^2y^2=-2x^3y^5

Bậc là 8

Phần biến là x^3;y^5

Hệ số là -2

2:

a: P(x)=3x+4x^4-2x^3+4x^2-x^4-6

=3x^4-2x^3+4x^2+3x-6

Q(x)=2x^4+4x^2-2x^3+x^4+3

=3x^4-2x^3+4x^2+3

b: A(x)=P(x)-Q(x)

=3x^4-2x^3+4x^2+3x-6-3x^4+2x^3-4x^2-3

=3x-9

A(x)=0

=>3x-9=0

=>x=3