满分5 >
初中数学试题 >
方程x2=9x的解是( ) A.x=9 B.x=3 C.x=9或x=0 D.x=...
方程x2=9x的解是( )
A.x=9
B.x=3
C.x=9或x=0
D.x=0
考点分析:
相关试题推荐
如图,C是⊙O上一点,O是圆心,若∠C=35°,则∠AOB的度数为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710004_ST/images0.png)
A.35°
B.70°
C.105°
D.150°
查看答案
如图,△ABC中,DE∥BC,AE=2,EC=3,则DE:BC的值是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710003_ST/images0.png)
A.2:3
B.5:2
C.3:5
D.2:5
查看答案
如果x=2是一元二次方程x
2-x+m=0的解,那么m的值是( )
A.0
B.2
C.6
D.-2
查看答案
下列图形中,既是中心对称图形又是轴对称图形的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710001_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710001_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710001_ST/images2.png)
D.
查看答案
若两圆的半径分别为
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710000_ST/0.png)
和
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103000621637671045/SYS201311030006216376710000_ST/1.png)
-1,圆心距为2,那么这两圆的位置关系是( )
A.内切
B.外切
C.相交
D.内含
查看答案