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2018年河南省南阳市镇平县中考数学二模试卷.pdf

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1、第1页共 24页2018 年河南省南阳市镇平县中考数学二模试卷一.选择题每题 3 分，共 30 分1 3 分以下各数中，比 2 小的数是A3B1C0D12 3 分每到四月，许多地方杨絮、柳絮如雪花般漫天飞舞，人们不堪其扰，据测定，杨絮纤维的直径约为0.0000105m，该数值用科学记数法表示为 A1.05105B1.05105C0.105105D10.51043 3 分甲是某零件的直观图，则它的俯视图为ABCD4 3 分以下计算正确的选项是Ab3?b3=2b3B 2a2=4a2C a+b2=a2+b2D x+2 x2=x225 3 分已知命题”关于 x 的一元二次方程 k1x2+4x+1=0没

2、有实数根“是假命题，则 k 的取值范围是Ak5Bk5，且 k1Ck5，且 k1 Dk56 3 分同时抛掷三枚质地均匀的硬币，至少有两枚硬币正面向上的概率是ABCD7 3 分如图，在 ABC中，BAC=90 ，分别以点 A 和点 C为圆心，大于AC长为半径画弧，两弧相交于点M、N，作直线 MN，交 BC于点 D，连结 AD，假设 AB=AD=3，则 AC的长为第2页共 24页A6B8C2D38 3 分已知一组数据为5，7，x，3，4，6假设这组数据的平均数为5，则这组数据的方差为ABCD109 3 分如图，在正方形ABCD中，点 P从点 A 出发，沿着正方形的边顺时针方向运动一周，APC的面积

3、y与点 P运动的路程 x 之间形成的函数关系图象如下图，则正方形ABCD的边长是A2B4CD210 3 分在平面直角坐标系中，边长为的正方形 OABC的两顶点 A，C分别在 y 轴、x 轴的正半轴上，点 O 在原点现将正方形 OABC绕 O点顺时针旋转，AC与 x 轴相交于点 D，如图，当AOD为等边三角形时，点 B的坐标为A，B，C，D，文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F

4、5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R

5、1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C

6、4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F

7、5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R

8、1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C

9、4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F

10、5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1第3页共 24页二.填空题每题 3 分，共 15 分11 3 分化简的结果是12 3 分不等式组的解集是13 3 分如图，在平面直角坐标系

11、xOy中，一次函数 y1=ax+ba，b 为常数，且 a0与反比例函数y2=m 为常数，且 m0的图象交于点 A2，1、B1，n 当 y1y2时，自变量 x 的取值范围是14 3 分如图，菱形 ABCD的边长为 2cm，以点 O为圆心，OA长为半径的经过点 C，作 CE OD，垂足为点 E，则阴影部分面积为15 3 分已知：RtABC中，B=90，AB=4，BC=3，点 M、N 分别在边 AB、AC上，将 AMN 沿直线 MN 折叠，点 A 落在点 P处，且点 P在射线 CB上，当PNC为直角三角形时，PN的长为三.解答题本大题共8 个小题，共 75 分文档编码:CY3C4Y3G10G10 H

12、J10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:

13、CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY

14、4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 H

15、J10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:

16、CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY

17、4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 H

18、J10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:

19、CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1第4页共 24页16 8 分假设+的值为，求 a 的值17 9 分某社区随机抽取了部分家庭，调查每月用于信息消费，数据整理成如下图的不完整统计图已知A、B 两组户数直方图的高度比为1：5，请结合图中相关数据答复以下问题月消费额分组统计表组别消费额 x 元A10?x100B100?x200C200?x300D300?x400Ex?4001求 A 组的频数和本次调查样本的容量；2补全直方图需标明各组频数；3假设该社区有 1500 户住户，请估计月信息消费额不少于300 元的户数是多少？18 9分如图，O 的直径 AB

20、垂直于弦 CD，垂足为点 E，过点 C作O 的切线，交 AB的延长线于点 P，连结 PD1求证：OCP ODP；2连接 CO并延长交 O于点 F，如果 CF=10，cosAPC=，求 BE的长文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R

21、1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C

22、4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F

23、5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R

24、1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C

25、4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F

26、5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R

27、1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1第5页共 24页19 9 分如图，一楼房 AB后有一假山，其坡度为i=1：，山坡坡面上 E点处有一休息亭，测得假山坡脚C 与楼房水平距离 CE=20米，小丽从楼房顶测得 E点的俯角为 48，测得假山坡脚 C点的俯角为 60，求楼房 AB的高结果保留整数20 9 分如图，在直角坐标系xOy

28、中，一直线 y=x+b 经过点 A 3，0与y 轴正半轴交于 B点，在 x 轴正半轴上有一点D，且 OA=OD，过 D 点作 DC x 轴交直线 y=x+b 于 C点，反比例函数 y=x0经过点 C1求这条直线和反比例函数的解析式；2反比例函数图象上是否存在点P，使四边形 BCPD为菱形？如果存在，求出P的点坐标；如果不存在，说明理由21 10 分某超市计划购进一批甲、乙两种玩具，已知5 件甲种玩具的进价与3 件乙种玩具的进价的和为231 元，2 件甲种玩具的进价与3 件乙种玩具的进文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y

29、3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R

30、10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y

31、10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y

32、3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R

33、10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y

34、10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y

35、3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R

36、10H1第6页共 24页价的和为 141 元1求每件甲种、乙种玩具的进价分别是多少元？2近期批发商有优惠活动，如下图，如果超市决定在甲、乙两种玩具中选购其中一种，且数量超过20 件，请你帮助超市判断购进哪种玩具省钱22 10 分如图 1，在 RtABC中，BAC=90 ，AB=AC，D，E两点分别在 AC，BC上，且 DE AB，将 CDE绕点 C按顺时针方向旋转，记旋转角为 1问题发现：当=0时，的值为；2拓展探究：试判断：当0?360 时，的大小有无变化？请仅就图2 的情况给出证明3问题解决：设 CE=13，AC=12，当EDC旋转至 A，B，E三点共线时，直接写出线段 BE的长23 11

37、分如图，抛物线 y=x2+bx+c 经过点 A3，0，点 C 0，3，点 D为二次函数的顶点，DE为二次函数的对称轴，点E在 x 轴上1求抛物线的解析式及顶点D 的坐标；2在抛物线 ADC段上有一点 F，使 FAC的面积最大，求该点坐标；3P为直线 DE上的动点，假设点P到直线 AD 的距离与到 x 轴的距离相等，则称 P为直线 AD和 x 轴的“等距点”请直接写出直线 AD和 x 轴的“等距点“的坐标文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:C

38、Y3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4

39、T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ

40、10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:C

41、Y3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4

42、T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ

43、10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:C

44、Y3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1第7页共 24页文档编码:CY3C4Y3G10G10 HJ10R1Y10

45、A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G

46、10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10

47、H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10

48、A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G

49、10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10

50、H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10A9H7 ZY4T3F5R10H1文档编码:CY3C4Y3G10G10 HJ10R1Y10

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关键词：: 2018 河南省南阳市镇平县中考数学试卷

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