giúp mik câu 41 42 43 vs 45 thôi ạ
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41. They put on a new roof last year.
- A new roof was put on last year
42. Someone empties the dustbins every Thursday.
- The dustbins are epmtied every Thursday.
43. She delivers milk at about six o’clock .
- Milk is delivered at about six o’clock .
44. They are going to finish a new school in the village next year.
- A new school is beeing to finished school in the village next year.
45. The police are questioning the man.
- The man is beeing questioned by the police.
46. They will probably send him back to Britain.
- he will be probably sent back to Britain.
47. Since then people have seen him in 10 different countries
- He has been seen in 10 different countries since then.
41. They put on a new roof last year.
- A new roof was put on last year
42. Someone empties the dustbins every Thursday.
- The dustbins are emptied every Thursday.
43. She delivers milk at about six o’clock .
- Milk is delivered at about six o’clock by her (chỗ này k đc bỏ Object by her vì chủ ngữ này xác định) .
44. They are going to finish a new school in the village next year.
- A new school is being finished in the village next year.
45. The police are questioning the man.
- The man is being questioned by the police.
46. They will probably send him back to Britain.
- he will probably be sent back to Britain.
47. Since then people have seen him in 10 different countries
- He has been seen in 10 different countries since then.
\(e,\left(x-2\right)^2-16=0\\ \Leftrightarrow\left(x-6\right)\left(x+2\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x=6\\x=-2\end{matrix}\right.\\ f,x^2-5x-14=0\\ \Leftrightarrow\left(x-7\right)\left(x+2\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x=7\\x=-2\end{matrix}\right.\\ g,8x\left(x-3\right)+x-3=0\\ \Leftrightarrow\left(8x+1\right)\left(x-3\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x=-\dfrac{1}{8}\\x=3\end{matrix}\right.\)
`@` `\text {Ans}`
`\downarrow`
`a)`
`-(-18 + 45) - (18 + 55)`
`= 18 - 45 - 18 - 55`
`= (18 - 18) - (45 + 55)`
`= -100`
`b)`
`24. (5 - 178) + 178 . (10 + 24)`
`= 24.5 - 24.178 + 178. 10 + 178. 24`
`= 24.5 + 178.(-24 + 10 + 24)`
`= 24.5 + 178.10`
`=120 + 1780`
`=``1900`
`c)`
`29.(-101)`
`= -2929`
`d)`
\((- 56 + 130) – (43 – 56) – (- 20 – 43)\)
`= -56 + 130 - 43 + 56 + 20 + 43`
`= (56 - 56) + (130 + 20) + (-43+43)`
`= 150`
Đây ạ :
Bài thơ thể hiện sâu sắc tình cảnh đáng thương của ông đồ đúng không?
41 + 42 + 43 + 44 - 21 - 22 - 23 - 24
= (41 - 21) + (42 - 22) + (43 - 23) + (44 - 24)
= 20 + 20 + 20 + 20
= 20 x 4
= 80
tk nha. chúc bn học giỏi :)
Đú đởn ăn chơi học hành sa sút đến nỗi có bài toán đơn giản như zậy mà cũng phải hỏi !
40-41+42-43+44-45+46-47+48-49+50-51+52-53+54-55+56-57+58=
=40+(42-41)+(44-43)+(46-45)+(48-47)+(50-49)+(52-51)+(54-53)+(56-55)+(58-57)=49
tìm số tự nhiên a lớn nhất sao cho:13 ;15 ;61 chia hết cho a đều dư 1
Tham khảo
Câu hỏi của Sakura kun - Toán lớp 6 - Học toán với OnlineMath
a:
Cân nặng | 39 | 40 | 41 | 42 | 43 | 45 |
số lượng | 1 | 4 | 3 | 4 | 1 | 2 |
N=15
c: Cân nặng trung bình là:
\(\dfrac{39\cdot1+40\cdot4+41\cdot3+42\cdot4+43+45\cdot2}{15}\simeq41,5\left(kg\right)\)
chữ đã đẹp còn mờ nữa :))
dạ để mik đăng lại thử xem nó đỡ mờ ko