Đổi: 4 giờ 15 phút = 4,25 giờ
Tàu hỏa đi đc số km là:
256 x 4,25 = 1088 (km)
đáp số:.....

ko biết

\(A=\frac{1}{2^2}+\frac{1}{3^2}+...+\frac{1}{2022^2}\)

\(< \frac{1}{2^2}+\frac{1}{2.3}+\frac{1}{3.4}+...+\frac{1}{2021.2022}\)

\(=\frac{1}{4}+\frac{3-2}{2.3}+\frac{4-3}{3.4}+...+\frac{2022-2021}{2021.2022}\)

\(=\frac{1}{4}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{2021}-\frac{1}{2022}\)

\(=\frac{1}{4}+\frac{1}{2}-\frac{1}{2022}< \frac{1}{4}+\frac{1}{2}=\frac{3}{4}\)

Đường chéo thứ nhất là: 

\(98\times\frac{4}{7}=56\left(cm\right)\)

Diện tích hình thoi đó là: 

\(98\times56\div2=2744\left(cm^2\right)\)

28,36 nha bn

35,45 x 0,8 = 28,36

Tổng số phần là:

         2 + 3 = 5 (phần )

Độ dài đường chéo thứ 2 là :

          (45: 5) x 2 = 18( cm )

độ dài đường chéo thứ nhất là :

            45 - 18 = 27 ( cm)

Diện tích hình thoi đó là :

            18 x 27 : 2 = 248 ( cm2)

                           Đáp số :248 cm2

hehe cú lừa

If I woke up without ya
I don't know what I would do
Thought I could be single forever 'til I met you
Usually don't be fallin', be fallin', fallin' first
You got a way of keeping me comin' back to back
I just found out the only reason that you lovin' me
Was to get back at your ex lover but before you leave
Usually I would never, would never even care
Baby, I know she creepin' I feel it in the air

Every night and every day
I try to make you stay
But your

Savage love
Did somebody, did somebody
Break your heart?
Lookin' an angel
But your savage love
When you kiss me
I know you don't give two fucks
But I still want that
Your savage love
Your savage lo-lo-love
Your savage lo-lo-love
You could use me
'Cause I still want that (your savage)

Baby, I hope that this ain't karma 'cause I get around
You wanna run it up, I wanna lock it down
Usually don't be fallin', be fallin', fallin' first
You got a way of making me spend up all my cash

Every night and every day
I try to make you stay
But your

Savage love
Did somebody, did somebody
Break your heart?
Lookin' an angel
But your savage love
When you kiss me
I know you don't give two fucks
But I still want that
Your savage love
Your savage lo-lo-love
Your savage lo-lo-love
You could use me
'Cause I still want that, your savage love

Ooh-la-la-la
Ooh-la-la-la
Your savage lo-lo-love
Ooh-la-la-la
Your savage lo-lo-love
Ooh-la-la-la
You could use me

Baby
Savage love
Did somebody, did somebody
Break your heart?
Lookin' an angel
But your savage love
But when you kiss me
I know you don't give two fucks
But I still want that
Your savage love (savage love)
Your savage lo-lo-love
Your savage lo-lo-love
Girl, you could use me
'Cause I still want that, your savage love

ht

uk