giúp tui ik
giúp tui với tối nay 7h tui ik hc rùi:(
3:
a: \(M=x+2x-4y-y-3=3x-5y-3\)
bậc là 1
b: \(N=-x^2t+13t^3+xt^2+5t^3-4\)
bậc là 3
5:
S=(3x+4y)*2*2z=4z(3x+4y)
V=3x*4y*2z=24xyz
Khi x=4;y=2;z=1 thì S=4*1*(3*4+4*2)=4*20=80cm2
V=24*4*2*1=192cm3
ai giúp tui ik
helppp!giúp tui ik
giúp tui ik mà
`y xx 2 + y xx 3 + y xx 4=45`
`=>y xx(2+3+4)=45`
`=>y xx 9=45`
`=>y=45:9`
`=>y=5`
giúp tui ik mà
A = 3 + 32 + 33 + 34 + .....+3100
3.A = 32 + 33 + 34 +......+ 3100 + 3101
3A - A = 3101 - 3
2A = 3101 - 3
2A + 3 = 3101 - 3 + 3
2A + 3 = 3101
2A + 3 = 34n+1 \(\Leftrightarrow\) 3101 = 34n+1 \(\Leftrightarrow\) 101 = 4n + 1 \(\Leftrightarrow\) 4n = 100 \(\Leftrightarrow\) n = 25
Kết luận n = 25 là giá trị thỏa mãn đề bài
giúp tui ik mấy bn:>>
1. I enjoy listening to pop music every day.
2. In the city, children play less freely than in the countryside.
3. An ordinary bicycle goes more slowly than a sport bicycle.
4. Nam can swim better than Hung.
5. My brother really enjoys hanging out with friends.
6. I love playing soccer.
7. How much are these clothes?
...listening to pop music every day
...play less freely than in the countryside
...more slowly than a sport bicycle
...better than Hung
...hanging out with friends
...playing soccer best
...are these clothes?
Giải giúp tui bài 3 ik
Ai giúp tui ik nha khó quá
giúp ik, tui đăng lại zì bị mất đề