pls help me with these 3 songs 
K
Khách
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KV
4 tháng 12 2023
(x - 1)(x - 3) < 0
⇒ x - 1 > 0 và x - 3 < 0
Hoặc x - 1 < 0 và x - 3 > 0
TH1: x - 1 > 0 và x - 3 < 0
*) x - 1 > 0
x > 0 + 1
x > 1 (1)
*) x - 3 < 0
x < 0 + 3
x < 3 (2)
Từ (1) và (2) ⇒ 1 < x < 3
TH2: x - 1 < 0 và x - 3 > 0
*) x - 1 < 0
x < 1 (3)
*) x - 3 > 0
x > 3 (4)
Từ (3) và (4) ⇒ không tìm được x thỏa mãn trường hợp 2
Vậy 1 < x < 3 thì (x - 1)(x - 3) < 0
AT
11 tháng 2 2018
Give the correct forms of the verbs in the bracket
1. She spent 3 hours.helping.. her brother with homework (help)
2. It will take me 30 minutes..to water. the vegetables (water)
3. We are fond of..singing. English songs. (sing)
4. She would like.to buy.. that shirt (buy)
5. I remember..being taken... (take) to that place once
6. These shirts need..ironing..(iron) at the moment.
7. If you feel like (stay)..staying.. with us, just semd us a fax
8. Wendy suggested..going... to the pub for lunch (go)
LM
Lê Minh Vũ
VIP
2 tháng 8 2023
\(\dfrac{1}{5}\times x-\dfrac{2}{3}=\dfrac{1}{10}\times x+\dfrac{5}{6}\)
\(\dfrac{1}{5}x-\dfrac{2}{3}-\dfrac{1}{10}x-\dfrac{5}{6}=0\)
\(\dfrac{1}{5}x-\dfrac{1}{10}x-\dfrac{2}{3}-\dfrac{5}{6}=0\)
\(\dfrac{1}{10}x-\dfrac{3}{2}=0\)
\(\dfrac{1}{10}x=\dfrac{3}{2}\)
\(x=15\)
NT
Nguyễn Thị Thương Hoài
Giáo viên
VIP
2 tháng 8 2023
\(\dfrac{1}{5}\).x - \(\dfrac{2}{3}\) = \(\dfrac{1}{10}\).x + \(\dfrac{5}{6}\)
⇒ \(\dfrac{1}{5}\).x - \(\dfrac{1}{10}\).x = \(\dfrac{5}{6}\) + \(\dfrac{2}{3}\)
⇒ \(\dfrac{2}{10}\).x - \(\dfrac{1}{10}\).x = \(\dfrac{5}{6}\) + \(\dfrac{4}{6}\)
⇒ \(\dfrac{1}{10}\).x = \(\dfrac{9}{6}\)
⇒ x = \(\dfrac{9}{6}\) : \(\dfrac{1}{10}\)
⇒ x = \(\dfrac{9}{6}\) . 10
⇒ x = \(\dfrac{90}{6}\)
⇒ x = 15
Vậy x = 15
B
0
DT
Đỗ Thanh Hải
CTVVIP
30 tháng 6 2021
1 Yesterday the plane took off earlier than I expected
2 My mother looks after us more carefully than my father
3 They cut the big cake into smaller parts than I thought
4 My sister even tells me off more often than my mother does
5 Who saw you off yesterday?
6 It is cold today so I put on more warm clothes than usual
7 Yesterday my mother picked my up later than usual
8 You are the pretties girl I have ever known
9 Unless you listen attentively to your teacher, you won't catch up with your friends
10 By far, "The Little Prince" has been my favorite book
DT
Đỗ Thanh Hải
CTVVIP
5 tháng 9 2021
39 be on time for your interview
40 tall is she
41 What is she like?
42 have you been in this city?
43 is the price of those books
44 How did she greet friends?
45 What did she walk to the station for
nói tiếng việt đi
please