Giúp mình làm bài 2 với ạ! Mình cảm ơn 
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NT
4
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1
NL
Nguyễn Lê Phước Thịnh
CTVHS
11 tháng 5 2022
Bài 1:
Vì (d)//y=-2x+1 nên a=-2
Vậy: y=-2x+b
Thay x=1 và y=2 vào (d),ta được:
b-2=2
hay b=4
17 tháng 8 2021
Em tách ra 1-2 bài/1 câu hỏi để mọi người hỗ trợ nhanh nhất nha!
O
0
SB
6 tháng 7 2021
mình làm những bài bn chưa lm nhé
9B
10A
bài 2
have repainted
bàii 3
ride - walikking
swimming
watch
NL
Nguyễn Lê Phước Thịnh
CTVHS
15 tháng 1 2022
Bài 2:
a: =>168x+20=6x-21
=>162x=-41
hay x=-41/162
b: \(\Leftrightarrow2\left(3x-8\right)=3\left(5-x\right)\)
=>6x-16=15-3x
=>9x=31
hay x=31/9
c: \(\Leftrightarrow4\left(x^2+8x-20\right)-\left(x+4\right)\left(x+10\right)=3\left(x^2+2x-8\right)\)
\(\Leftrightarrow4x^2+32x-80-x^2-14x-40-3x^2-6x+24=0\)
=>12x-96=0
hay x=8
V
1
BG
17 tháng 12 2022
Dear My friend
I live in Ha Noi. It’s the capital of Vietnam. I’ve been living here for 5 years and I believe it’s the place that suits me most. The city has great culture to explore and offers good opportunities of career and education.People who live here is very friendly and helpful. But the crowded congested traffic is a real issue here, it’s an ideal place to meet people from over the world. It’s always changing so you’ll hardly get bored at this sleepless city.
Best regards,
(Your name)
TT
0
NT
2
1
5 When I was at school, my parents often helped me with my homework.
6 I learned/learnt French when I was at school, but I don't remember very much now.
7 I tried to phone you last night, but there was no answer.
8 When he was a young musician, Red Dwight changed his name to Elton John.
9 I worked in finance for a big computer company from 2001 to 2011.
10 The composer Chopin was born in Poland, but he lived in France for many years.
2
1 Martin Scorsese made (make) the film Hugo.
2 Lindsey’s holiday last year cost (cost) over 2,000 euros.
3 Lucy’s parents gave (give) her a car for her 21st birthday.
4 We were both so hot and thirsty that we drank (drink) two bottles of mineral water.
5 Steve became (become) a writer when he was 45.