mn oi giup vs bai 5
Mn oi lam giup mk bai nay vs
1.How does your dad go to work ?
2. Where does she rode her bike ?
3. What should I do when I hava toothache ?
4. Is there any butter in the fridge ?
5. When are they going to BaNa Hill ?
1 How does your dad go to work?
2. Where does she rode her bike ?
3. what shoild I do when I hava toothache?
4 Is there any butter in the fridge?
5 When are they going to BaNa Hill ?
1. How does your dad go to work?
2. Where did she rode her bike?
3. What should I do when I have tootache?
4. Is there any butter in the fridge?
5. When are they going to BaNa Hill?
mn oi giup mik 2 bai nay dc ko aj plss mn
2:
1: =7x(x-y)-5(x-y)
=(x-y)(7x-5)
2: =(x^2-y^2)-(4x-4y)
=(x-y)(x+y)-4(x-y)
=(x-y)(x+y-4)
3: =(x^2+2xy+y^2)-(2x+2y)+1
=(x+y)^2-2(x+y)+1
=(x+y-1)^2
Mn oi giup mik vs
3x + 40= -5
3x= (-5) -40
3x= -45
x= -45 :3
x= -15
\(3x+40=-5\)
\(3x=-45\)
\(x=-15\)
Mn oi giup mk bai nay nhe!
Bai 1 va Bai 2
Giup minh bai 3 vs b4 cac ban oi minh dang can gap a pls
Bài 4:
\(P=\dfrac{x^2-2x+2022}{x^2}=\dfrac{2022x^2-2.2022x+2022^2}{2022x^2}=\dfrac{\left(x^2-2.2022x+2022^2\right)+2021x^2}{2022x^2}=\dfrac{\left(x-2022\right)^2}{2022x^2}+\dfrac{2021}{2022}\ge\dfrac{2021}{2022}\)\(P_{min}=\dfrac{2021}{2022}\Leftrightarrow x=2022\)
cac ban oi giup mk vs : dat loi ms cho bai hat li cay da
mn giai giup mik bai bai nay vs
Mn oi giup mk giai may bai nay nha!
Bai 1
1. A letter is read by Peter.
2. All the books in the shop were sold.
3. The words are explained by teacher today.
4. A new restaurant will be opened next week.
5. The lessons were prepared carefully.
1.read
2.were sold
3.are explain
4.will be
5.were prepared
Chuc ban hk tốt hơn!
Mn oi giup minh bai nay nhe
Vẽ thêm tia Ox // Aa ( như hình vẽ ). Vì Aa // Bb => Ox // Bb
Vì Ox // Aa nên ta có: \(\widehat{aAO}+\widehat{AOx}=180^o\) ( 2 góc trong cùng phía )
hay \(120^o+\widehat{AOx}=180^o\)
=> \(\widehat{AOx}=180^o-120^o=60^o\)
Vì Ox // Bb nên ta có: \(\widehat{xOB}+\widehat{OBb}=180^o\) ( 2 góc trong cùng phía )
hay \(\widehat{xOB}+155^o=180^o\)
=> \(\widehat{xOB}=180^o-155^o=25^o\)
Trên 2 nửa mặt phẳng đối nhau bờ chứa tia Ox có:
Góc AOx + góc xOB = 60o + 25o = 85o < 180o
=> Ox nằm giữa OA và OB
=> \(\widehat{AOx}+\widehat{xOB}=\widehat{AOB}\)
=> \(85^o=\widehat{AOB}\)
Vậy \(\widehat{AOB}=85^o\)
Kẻ một đường thẳng c qua O , sao cho :
c // a
mà a // b
=> a // b // c
Quy định : góc nằm phía trên bên phải là O1
góc nằm phía dưới bên trái là O2
Ta có :
Vì A và O1 là 2 trong cùng phía
=> A + O1 = 180
mà A = 125
=> O1 = 55
Vì O2 và B là 2 trong cùng phía
=> O2 + B = 180
mà B = 155
=> O2 = 25
Vì O = O1 + O2
=> O = 55 + 25 = 80
Vậy AOB = 80
Cac ban oi giup mk vs , cac ban giup mk viet mot bai van bieu cam ve ban than cua em ma phai ba trang nhe
cô giáo bạn bóp óc hs ra cũng ko đk 3 trang , 2 trang đã khó rồi