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27 tháng 7 2021

27.C

28.B

AH
Akai Haruma
Giáo viên
24 tháng 2 2022

Lời giải:
Gọi vận tốc của bác Bình là $a$ km/h thì vận tốc của bác Hà là $a+2$ km/h

Thời gian bác Hà đi đến khi gặp nhau là:
$\frac{BC}{a+2}=\frac{32}{a+2}$ (h) 

Thời gian bác Bình đi đến khi gặp nhau là: $\frac{AC}{a}$ (h) 

Vì bác Hà đi sau bác Bình 1 h nên:
$\frac{32}{a+2}=\frac{AC}{a}-1=\frac{71-32}{a}-1=\frac{39}{a}-1$

$\Rightarrow a=\frac{1}{2}(5+\sqrt{337})$

Hai bác gặp nhau sau: $\frac{32}{a+2}=\frac{1}{4}(\sqrt{337}-9)$ (h) khi bác Hà khởi hành.

 

Để kéo trực tiếp một thùng nước có khối lượng là 8 kg từ giếng lên , người ta phải dùng lực nào trong các lực dưới đây ?

A. F < 8 N

B. F > 8 N

C . 8 N < F < 80 N

D. F = 80 N

 

3 tháng 1 2019

1 Kg =10N nên 8Kg = 80N

Loại câu A do 80N > 8N

Loai câu C do 9N < 80N nên không kéo đc

Câu D là hợp lí nhất do F=Fvật=80N

Nên câu D đúng

4 tháng 8 2019

Mrs Forbes was very old and very poor. Everybody in the neighbourhood called her Granny Forbes and tried to hhelp her. Some neighbours came in each day and cooked meals for her. Others came and cleaned her room. There was little furniture in her room. It was small, dark, and almost empty. There was a bed and a table, and there were two chairs. In winter, neighbours sometimes brought coal and lit a fire, but Granny’s room was often very cold. Granny lived in poverty all her life. She died at the age of eighty-four. Then her neighbours got a big surprise. She left £50,000!

1. How was Mrs Forbes's room/?

=> It was small, dark, and almost empty

2 .What was there in her room?

=> There was a bed and a table, and there were two chairs

3. How old was she when she died?

=> She died at the age of eighty-four

Nhanh như chớp >>

1 tháng 10 2021

máy tính hay tv đấy 

1 tháng 10 2021

Máy tính như hacker í

22 tháng 8 2021

D

22 tháng 8 2021

30. “I was intending to meet you tomorrow”.

a. She told me she was intending to meet me tomorrow.

b. She told me she had intending to meet me the next day.

c. She told me she had been intending to meet me tomorrow.

d. She told me she had been intending to meet me the next day.

11 tháng 10 2016

Mẹ sinh con năm 28 tuổi nên mẹ hơn con 28 tuổi.Khi tuổi mẹ gấp 3 lần tuổi con thì tuổi mẹ là : 28 : (3 - 1) x 3 = 42 (tuổi)

11 tháng 10 2016

mẹ 42 tuổi

Crashing, hit a wallRight now I need a miracleHurry up now, I need a miracleStranded, reaching outI call your name but you're not aroundI say your name but you're not aroundI need you, I need you, I need you right nowYeah, I need you right nowSo don't let me, don't let me, don't let me downI think I'm losing my mind nowIt's in my head, darling I hopeThat you'll be here, when I need you the mostSo don't let me, don't let me, don't let me downD-Don't let me downDon't let me downDon't let me down,...
Đọc tiếp

Crashing, hit a wall
Right now I need a miracle
Hurry up now, I need a miracle
Stranded, reaching out
I call your name but you're not around
I say your name but you're not around

I need you, I need you, I need you right now
Yeah, I need you right now
So don't let me, don't let me, don't let me down
I think I'm losing my mind now
It's in my head, darling I hope
That you'll be here, when I need you the most
So don't let me, don't let me, don't let me down
D-Don't let me down

Don't let me down
Don't let me down, down, down
Don't let me down, don't let me down, down, down

R-r-running out of time
I really thought you were on my side
But now there's nobody by my side

I need you, I need you, I need you right now
Yeah, I need you right now
So don't let me, don't let me, don't let me down
I think I'm losing my mind now
It's in my head, darling I hope
That you'll be here, when I need you the most
So don't let me, don't let me, don't let me down
D-Don't let me down

Don't let me down
Don't let me down, down, down
Don't let me down, down, down
Don't let me down, down, down
Don't let me down, don't let me down, down, down

Oh, I think I'm losing my mind now, yeah, yeah, yeah
Oh, I think I'm losing my mind now, yeah, yeah

I need you, I need you, I need you right now
Yeah, I need you right now
So don't let me, don't let me, don't let me down
I think I'm losing my mind now
It's in my head, darling I hope
That you'll be here, when I need you the most
So don't let me, don't let me, don't let me down
Don't let me down

Yeah, don't let me down
Yeah, don't let me down
Don't let me down, oh no
Said don't let me down
Don't let me down
Don't let me down
Don't let me down, down, down    

_______________________

Dịch đi :) Cấm Google nha =)

6
3 tháng 7 2016

- Hahah: 10:00

3 tháng 7 2016

Google dịch thẳng tiến.

16 tháng 3 2017

5 000 000 000-99 000 000=4 001 000 000

 mẹ còn lại 4 tỉ 1triệu đồng

Lời bài hát Waste It On Me (Bài mới của BTS) [Verse 1: Jungkook] You say love is messed up You say that it don't work You don't wanna try, no, no (You don't wanna try, no, no) And baby, I'm no stranger To heartbreak and the pain of Always being let go (Always being let go) [Pre-Chorus: Jungkook, RM & Jimin] And I know there's no making this right, this right (This right) And I know there's no changing your mind, your mind (Your mind) But we both found each other...
Đọc tiếp
Lời bài hát Waste It On Me (Bài mới của BTS)

[Verse 1: Jungkook]
You say love is messed up
You say that it don't work
You don't wanna try, no, no
(You don't wanna try, no, no)
And baby, I'm no stranger
To heartbreak and the pain of
Always being let go (Always being let go)

[Pre-Chorus: Jungkook, RM & Jimin]
And I know there's no making this right, this right (This right)
And I know there's no changing your mind, your mind (Your mind)
But we both found each other tonight, tonight (Oh yeah)
So if love is nothing more than just a waste of your time

[Chorus: Jungkook, RM & Jimin]
Waste it on me, waste it on me
(Waste it on me)
Tell me, why not waste it on me? Waste it on me
(Waste it on me)
Baby, why not waste it on me? Waste it on me
(Waste it on me)
Tell me, why not waste it on me? Waste it on me
(Waste it on me)

[Verse 2: RM]
So we don't gotta go there
Past lovers and warfare
It's just you and me now (Yeah, yeah)
I don't know your secrets
But I'll pick up the pieces
Pull you close to me now (Yeah, yeah)

[Pre-Chorus: Jungkook, RM & Jimin]
And I know there's no making this right, this right (Yeah)
And I know there's no changing your mind, your mind (Oh)
But we both found each other tonight, tonight (Oh yeah)
So if love is nothing more than just a waste of your time

[Chorus: Jungkook, RM & Jimin]
Waste it on me, waste it on me
(Waste it on me)
Tell me, why not waste it on me? Waste it on me
(Waste it on me)
Baby, why not waste it on me? Waste it on me
(Waste it on me)
Tell me, why not waste it on me? Waste it on me
(Waste it on me)
Tell me, why not?

[Verse 3: RM]
Yay, don't you think there must be a reason
Yeah, like we had our names
Don't you think we got another season
That come after spring
I wanna be your summer
I wanna be your wave
Treat me like a comma
And I'll take you to a new phrase
Yeah, come just eat me and throw me away
If I'm not your taste, babe, waste
Waste it on me

[Pre-Chorus: Jungkook & Jimin]
And I know there's no making this right, this right (Yeah)
And I know there's no changing your mind, your mind (Oh)
But we both found each other tonight, tonight (Oh, yeah)
So if love is nothing more than just a waste of your time

[Chorus: Jungkook, RM & Jimin]
Waste it on me, waste it on me
(Waste it on me)
Tell me, why not waste it on me? Waste it on me
(Waste it on me)
Baby, why not waste it on me? Waste it on me
(Waste it on me)
Tell me, why not waste it on me? Waste it on me
(Waste it on me)
Tell me, why not?

4
29 tháng 10 2018

Cú đấm thép của BTS vào thị trường âm nhạc quốc tế

9 tháng 11 2018

Nghiện bài này rồi

3 tháng 10 2018

By dặm, bạn đang ở xa tôi. Theo suy nghĩ, bạn ở gần tôi. Bởi trái tim, bạn đang ở trong tôi .... Tôi ghét khi bạn mỉm cười với tôi bởi vì bạn làm cho tôi điên về bạn. Tôi ghét khi bạn nói chuyện với tôi bởi vì bạn làm cho tôi hết lời. Tôi ghét bạn khi tôi nhìn thấy bạn bởi vì bạn làm cho tôi yêu bạn nhiều hơn !!!!

3 tháng 10 2018

Bằng dặm, bạn đang ở xa tôi. Theo suy nghĩ, bạn ở gần tôi. Bởi trái tim, bạn đang ở trong tôi ....
Tôi ghét khi bạn cười với tôi bởi vì bạn làm tôi phát điên về bạn. Tôi ghét khi bạn nói chuyện với tôi bởi vì bạn làm cho tôi hết lời. Tôi ghét bạn khi tôi nhìn thấy bạn bởi vì bạn làm cho tôi yêu bạn nhiều hơn !!!!