满分5 >
初中数学试题 >
已知关于x的一元二次方程x2+(k+3)x+k=O有一个实数根是1,则这个方程的...
已知关于x的一元二次方程x2+(k+3)x+k=O有一个实数根是1,则这个方程的另一个实数根是 .
考点分析:
相关试题推荐
如图,AB为半圆的直径,点P为AB上一动点,动点P从点A出发,沿AB匀速运动到点B,运动时间为t,分别以AP与PB为直径做半圆,则图中阴影部分的面积S与时间t之间的函数图象大致为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625009_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625009_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625009_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625009_ST/images3.png)
D.
查看答案
如图,某种型号链条每节长为2.5cm,每两节链条相连接部分重叠的网的直径为0.8cm,则这种链条60节的总长度为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625008_ST/images0.png)
A.150cm
B.104.5cm
C.102.8cm
D.102cm
查看答案
解方程
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625007_ST/0.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625007_ST/1.png)
的结果是( )
A.x=-3
B.x=3
C.x=6
D.无解
查看答案
如图,AB是⊙O的直径,弦CD⊥AB,垂足为点E,AB=10,CD=8,那么AE的长为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625006_ST/images0.png)
A.2
B.3
C.4
D.5
查看答案
下列几何体中,主视图、左视图、俯视图相同的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625005_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625005_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131022164812469462595/SYS201310221648124694625005_ST/images2.png)
D.
查看答案