八年級上英語unit12 sectionB 3A的原文

八年級上英語unit12 sectionB 3A的原文

還要麼？
What do young people think about places in town？Wedid a survey of our readers and this is what we learned. All the movie theaters are good，but the Screen City is the best in our town. It has the biggest screens and the most comfortable seats. However，Town Cinema is the cheapest，and it has the friendliest service. The most popular clothing store is Jason's . It has the best quality clothing. It's also the cheapest. Funky Fashhinos is the worst. It has really bad service. As for radions，most people think that Jazz 107.9 FM is really great. It plays the most interesting muisc.
Last week；s talent show was a greatsuccess.Therewere fifteenacts.Elizawon the prize for the bastperformer.Sheplayed a beautiful pianopiece.HuYue was the quietestperformer.Hedanced withoutmusic.Theprize for the funniest act went to Steve Tian and his dog，Fido.Theysang a cute song together.

八年級下册英語unit9 sectionB 3A兩篇原文.
瓦的英語書米帶回來..
求.unit9 sectionB 3A兩篇原文

題目：Come to the Hilltop Language School and change your life第一篇Here's what two of our studengs said about our school When I was a young girl，all I ever wanted to do was travel，and i decided tha…

八年級下册英語第一單元SectionB 3a原文
就是翻譯是：在十年之後，我認為我會成為一名記者，我將要住在上海，因為我去年去了上海而且對那兒一見鍾情，我認為那兒真的是一個美麗的都市.作為一名記者我認為我將會遇見許多有趣的人.我認為我將會和我最好的朋友…急用啊）

in ten years，I think I'will be a reporter.I'll live live in ShangHai，because I went to ShangHai last year and fell in love with it.I think it's really a beautifulcity.Asa reporter，I think I will mee…

4.78－1.28＋1.22－0.72怎麼簡便計算

4.78+1.22-（1.28+0.72）=6-2=4

已知方程組X=3，y=-2是方程組AX=BY=6,2AX-3BY=12解，求A-2B的值
已知方程組X=3，y=-2是方程組AX+BY=6,2AX-3BY=12解，求A-2B的值。
上面的題錯了

若為
AX+BY=6,2AX-3BY=12
X=3，y=-2是方程組的解
3A-2B=6
6A+6B=12
得A=2，B=0
故A-2B=2
若為AX—BY=6,2AX-3BY=12
3A+2B=6
6A+6B=12
得A=2，B=0
故A-2B=2

21分之20÷18分之11×15分之11 35分之2÷【（5分之1-6分之1）÷24分之5】有簡便算灋麼？

20/21÷11/18x11/15
=20/21x18/11x11/15
=40/35=8/7
2/35÷（（1/5-1/6）÷5/24）
=2/35÷（1/30÷5/24）
=2/35÷4/25
=10/28

若函數y=ax^2（a不等於0）的影像在直線y=2x-3的上方，求a的取值範圍

顯然a>0，抛物線開口朝上
令ax^2=2x-3，ax^2-2x+3=0
由題，兩影像沒有交點
△=4-12a1/3

通分：5/18和15/28

5/18=70/252
15/28=135/252
如果本題有什麼不明白可以追問，
另外發並點擊我的頭像向我求助，請諒解，

指數函數e積分
請問2倍的e的-2x次方在零到正無窮上的積分怎麼求啊，我看答案是1/2請問是怎麼求的啊，

的確是1/2，
把前面的係數2提到d後面，d前後同時加負號，用y代替-2x，剩下的你應該都明白的，除非你還是高中生.
這裡編輯積分號不方便

1乘2分之1加2乘3分之1加3乘4分之1加4乘5分之1加5乘6分之1加6乘7分之1等於多少？注意只是加

1乘2分之1加2乘3分之1加3乘4分之1加4乘5分之1加5乘6分之1加6乘7分之1
=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7
=1-1/7
=6/7
=7分之6