Help me
Mai mk học rùi
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\(\dfrac{2^8\cdot9^3}{6^4\cdot4^3}=\dfrac{2^8\cdot3^6}{2^4\cdot3^4\cdot2^6}=\dfrac{2^8\cdot3^6}{2^{10}\cdot3^4}=\dfrac{3^2}{2^2}=\dfrac{9}{4}\)
\(12^5\div\left(2^6\cdot3^8\right)=2^{10}\cdot3^5\div\left(2^6\cdot3^8\right)=\dfrac{2^{10}\cdot3^5}{2^6\cdot3^8}=\dfrac{2^4}{3^3}=\dfrac{16}{27}\)
\(\dfrac{3^{12}\cdot2^{14}\cdot5^5}{10^5\cdot6^8\cdot12^4}=\)\(\dfrac{3^{12}\cdot2^{14}\cdot5^5}{5^5\cdot2^5\cdot2^8\cdot3^8\cdot2^8\cdot3^4}=\)\(\dfrac{3^{12}\cdot2^{14}\cdot5^5}{5^5\cdot2^{21}\cdot3^{12}}=\dfrac{1}{2^7}=\dfrac{1}{128}\)
1) \(\dfrac{2^8\cdot9^3}{6^4\cdot4^3}=\dfrac{2^8\cdot3^6}{2^4\cdot2^6\cdot3^4}=\dfrac{3^2}{2^2}=\dfrac{9}{4}\)
2) \(12^5:\left(2^6\cdot3^8\right)=\dfrac{2^{10}\cdot3^5}{2^6\cdot3^8}=\dfrac{2^4}{3^3}=\dfrac{16}{27}\)
câu 6:
Rễ gồm 4 miền: Miền trưởng thành: có chức năng dẫn truyền. Miền hút: hấp thụ nước và muối khoáng. Miền sinh trưởng: làm cho rễ dài ra. Miền chóp rễ: che chở cho đầu rễ.Sự giống nhau giữa thân non và thân trưởng thành ?
Khác nhau mk bít rùi nha
HELP ME MAI MK KT 45 PHÚT
Giống nhau là
-đều có thịt vỏ , mmạch rây , mạch gỗ
-vỏ gồm thịt vỏ
-trụ giữa gồm mạch rây , mạch gỗ
Khác nhau là
-thân non:
+có biểu bì
+có ruột
-thân trưởng thành:
có tầng sinh vỏ nằm trong lớp thịt vỏ
có tầng sinh trụ nằm giữa mạch rây và mạch rây
Ta có : \(x^2+1>0\)
Vậy để \(\frac{x^2+1}{x-5}< 0\) thì \(x-5< 0\Rightarrow x< 5\)
\(8y+4y+2y+y-5y=28,6\)
\(\Rightarrow9y=28,6\)
\(\Rightarrow y=\frac{286}{90}\)
Write about the kind of book you best
I am usually in habit of reading books. Addition to books that offer me much useful information,I also comic book. I am in fond of it for some following reasons.
To begin with, Comic books bring me a great deal of relaxation. One of them is Doremon story, which tells many funny short stories about 2 main characters, Doremon and Nobita,Who are close friends. The author of that comic creats so many amusing situations among characters that I can”t help laughing. It”s actually a hard-to-put-down book. It attracts not only children but also adults as me.
Another good point of it I want to mention about is creative imagination. I mean children need to have imaginative mindset, which helps them be more active in life.
By and large, comic book is worth reading after hard work. It is nice for everyone.
Write about the kind of book you best
I am usually in habit of reading books. Addition to books that offer me much useful information,I also comic book. I am in fond of it for some following reasons.
To begin with, Comic books bring me a great deal of relaxation. One of them is Doremon story, which tells many funny short stories about 2 main characters, Doremon and Nobita,Who are close friends. The author of that comic creats so many amusing situations among characters that I can”t help laughing. It”s actually a hard-to-put-down book. It attracts not only children but also adults as me.
Another good point of it I want to mention about is creative imagination. I mean children need to have imaginative mindset, which helps them be more active in life.
By and large, comic book is worth reading after hard work. It is nice for everyone.
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