Cho đọan thẳng AB dài 10cm cho hai điểm M,N biết AM=2cm BN=4cm tính độ dài MN
K
Khách
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
21 tháng 3
1. My brother watches TV two hours a day.
-> How many hours a day does your brother watch TV ?
2. I like Tu Long best ib the Weekend Meeting shows.
-> Who do you like best in the Weekend Meeting shows ?
3. The news programme often finshes at eighto' clock.
-> What time does the news programme often finish ?
-> When does the news programme often finish ?
4. We watched the late football match on TV last night.
-> What did you watch on TV last night ?
5. The new television is ten thousand million dong.
21 tháng 3
1. My brother watches TV two hours a day.
-> How many hours a day does your brother watch TV ?
2. I like Tu Long best ib the Weekend Meeting shows.
-> Who do you like best in the Weekend Meeting shows ?
3. The news programme often finshes at eighto' clock.
-> What time does the news programme often finish ?
-> When does the news programme often finish ?
4. We watched the late football match on TV last night.
-> What did you watch on TV last night ?
5. The new television is ten thousand million dong.
-> How much is the new television ?
10 tháng 1 2016
a56b chia het cho 45=>a56b chia het cho ca 5 va 9
a56b chia het cho 5 ->b thuoc 0;5
a56b chia het cho 9.TH1:neu b=0->a+5+6+0 chia het cho 9
->a+11 chia het cho 9(1)
ma a la chu so(2)
tu(1) va(2)->a=7
TH2:neu b=5->a+5+6+5 chia het cho 9
->a+16 chia het cho9(3)
ma a la chu so(4)
tu(3) va (4)->a=2
thoi ban tu vay nhe!
HP
10 tháng 1 2016
|x-1|-1=2
=>|x-1|=2+1
=>|x-1|=3
=>x-1=3 hoặc x-1=-3
=>x=3+1 hoặc x=-3+1
=>x=4 hoặc x=-2
vậy x E {-2;4}
TN
10 tháng 1 2016
<=>2(n+3)+13 chia hết n+3
=>13 chia hết n+3
=>n+3\(\in\){-13,-1,1,13}
=>n\(\in\){-16,-4,-2,11}
vì x \(\in\)Z => x \(\in\){-16,-4,-2}
vậy x \(\in\){-16,-4,-2}
P
4
10 tháng 1 2016
muốn nhắn cho 11 ta lấy tổng hai chữ số de o giua, neu tren 10 thi ghi nho sang trang hang chuc, don vi ghi doi voi so nguyen co 2 chu so, giu nguyen dau
DY
1