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1、2012 年南安市初中学业质量检查数学试题一、选择题(每小题 3 分,共 21 分):164 的平方根是()A4 B8 C 8 D 8 2下列运算,正确的是()A.22aaaB.523aaaC.236aaaD.623)(aa3不等式13x的解集是()A31xB31xC3xD3x4如图,AB 是 O 的直径,AC 是弦,若 A 30,则 BOC 的度数是()A30B50C60D1205如图,已知棋子“车”的坐标为(2,3),棋子“马”的坐标(第 4 题图)为(1,3),则棋子“炮”的坐标为()A(3,2)B(3,1)C(2,2)D(2,2)6下列事件中为必然事件的是()A投掷一枚正方体骰子,点数
2、“4”朝上B从一副只有l 到 l0 的 40 张扑克牌中任意抽出一张,它比l 大C袋子中有20 个红球,从中摸出一个恰好是白球D随机从0、1、2、9十个数中选取2 个不同的数,它们的和小于l8 7如图,在ABC 中,AB AC,点 D、E 在 BC 边上,ABD DAE EAC 36,则图中共有等腰三角形的个数是()A4 个B5 个C6 个D7 个二、填空题(每小题4 分,共 40 分):在答题卡上相应题目的答题区域内作答83 的相反数是9地球的赤道半径约为6 370 000 米,用科学记数法记为米10比较大小:2 3(用“”、“”或“”号填空)11七边形的内角和等于度12已知菱形面积是224
3、cm,一条对角线长是cm6,则另一条对角线长是cm.13分式方程111x的解是14已知3ba,1ab,则22ba的值为 _15一个正方体的每个面都写有一个汉字其平面展开图如图所示,那么在该正方体中,和“您”相对的字是(第 15 题图)16用圆心角为120,半径为cm6的扇形做成一个无底的圆锥侧面,则此圆锥的底面半径为cm_17在平面直角坐标系xOy中,OEFG 为正方形,点F 的坐标为(1,1)将一个最短边长大于2的直角三角形纸片的直角顶点放在对角线FO 上(1)如图,当三角形纸片的直角顶点与点F 重合,一条直角边落在直线 FO 上时,这个三角形纸片与正方形OEFG 重叠部分(即阴影部分)的面
4、积为;(2)若三角形纸片的直角顶点不与点O、F 重合,且两条直角边与正方形相邻两边相交,当这个三角形纸片与正方形OEFG 重叠部分的面积是正方形面积的一半时,该三角形纸片直角顶点的坐标是三、解答题(共89 分):在答题卡上相应题目的答题区域内作答18(9 分)计算:10)31(128)2(|3|19(9 分)先化简,再求值:aaaaa2221,其中2a20(9 分)如图,E、F 是平行四边形ABCD 对角线 AC 上的两点,且AECF求证:ADF CBE 21(9 分)下面图、图是某校调查部分学生是否知道母亲生日情况的扇形和条形统计图:文档编码:CW3T3M10N7W5 HY3P2X9A4V5
5、 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文
6、档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N
7、7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4
8、V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W
9、3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M1
10、0N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9
11、A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3图图根据上图信息,解答下列问题:(1)本次共调查了名学生,扇形统计图中“知道”所占的百分数是,并补全条形统计图;(2)若全校共有3000 名学生,请你估计这所学校有多少名学生知道母亲的生日?22(9 分)将分别标有数字1,2,2,3 共四张卡片洗匀后,背面朝上放在桌面上(1)随机地抽取一张,求抽到奇数的概率;(2)请你通
12、过列表或画树状图分析:随机地抽取一张作为十位上的数字(不放回),再抽取一张作为个位上的数字,能组成哪些两位数?其中恰好是“22”的概率是多少?23(9 分)某校九年级举行数学竞赛,派了两位老师去某超市购买笔记本作为奖品已知该超市A、B 两种笔记本的价格分别是每本12 元和 8 元,他们准备购买这两种笔记本共30 本(1)如果他们计划用300 元购买奖品,那么能买这两种笔记本各多少本?(2)两位老师根据比赛的设奖情况,决定购买A 种笔记本的数量不少于B 种笔记本数量的31,请你帮他们分析:购买这两种笔记本各多少本时,花费最少,此时的花费是多少元?24(9 分)如图,在矩形ABCD 中,E、F 分
13、别是边AD、BC 的中点,点G、H 在 DC 边上,且GH 21DC,EH 与 FG 相交于 O 点(1)求证:EFO HGO;(2)若 AB 10,BC 12,求图中阴影部分面积文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:
14、CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5
15、HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 Z
16、L2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编
17、码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W
18、5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5
19、 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W325(13 分)如图,已知双曲线xky3(k为常数)与直线l相交于 A、B 两点,第
20、一象限内的点 M(点 M 在 A 的左侧)是双曲线xky3上的一动点,设直线 AM、BM 分别与y轴交于 P、Q 两点(1)若直线l的解析式为xy61,A 点的坐标为(a,1),求a、k的值;当 AM 2MP 时,求点P 的坐标(2)若 AM m MP,BM n MQ,求nm的值(第 25 题图)(第 26 题图)26(13 分)已知二次函数32bxxy(b为常数)的图象经过点(2,3)(1)求b的值;(2)如图,已知点A(1,0)、B(6,0),ABC 90,AB BC,将 ABC 沿x轴向左平移n个单位得到 ABC,若点 C 恰好落在第一象限的抛物线上,求n的值;(3)在(2)的条件下,点
21、M 是线段 AC上一动点(点A、C 除外),过点 M 作x轴的垂线交抛物线于点N,当线段 MN 的长度达到最大时,求以 MN 为直径的圆与直线AC的另一个交点 P 的坐标四、附加题(共10 分):在答题卡上相应题目的答题区域内作答友情提示:请同学们做完上面考题后,再认真检查一遍,估计一下你的得分情况如果你全卷得分低于90 分(及格线),则本题的得分将计入全卷总分,但计入后全卷总分最多不超过90分;如果你全卷总分已经达到或超过90 分,则本题的得分不计入全卷总分填空:1计算:xx2632如图,已知直线ab,135,则 2的度数是文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T
22、5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:C
23、W3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 H
24、Y3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL
25、2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码
26、:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5
27、 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5
28、ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W32012 年南安市初中学业质量检查数学试题参考答案及评分标准说明:(一)考生的正确解法与 参考答案 不同时,可参照 参考答案及评分标准 的精神进行评分(二)如解答的某一步出现错误,这一错误没有改变后续部分的考查目的,可酌情给分,但原则上不超过后面应得的分数的二分之一;如属严重的概念性错误,就不给分(三)以下解答各行右端所注分数表示
29、正确做完该步应得的累计分数一、选择题(每小题3 分,共 21 分)1D;2D;3B;4C;5A;6 D;7C二、填空题(每小题4 分,共 40 分)8 3;9;10;11900;128;13;147;15年;162;17(1);(2)或 三、解答题(共89 分)18(本小题9 分)解:原式=8 分=9 分19(本小题9 分)解:原式=2 分=6 分=7 分当 时,原式=9 分20(本小题9 分)证明:四边形ABCD 是平行四边形AD/BC,AD BC4 分 DAF BCE 6 分AE CF,AE EFCF EF,即 AFCE8 分在 ADF 和 CBE 中,AD BC,DAF BCE,AFCE
30、 ADF CBE 9 分21(本小题9 分)文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL
31、2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码
32、:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5
33、 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5
34、ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档
35、编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7
36、W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3解:(1)100,60%,4分,图略(其中 知道 60 名,不知道 10 名)6 分(2)300060%1800(名)8 分这所学校约有1800 名学生知道母亲的生日9 分22.(本小题9 分)解:(1);3分(2)画树
37、状图如下:7 分(或列表格:略)由上可知,共有12 种等可能的结果,其中恰好是22 的有 2 种,P(恰好是 22)9 分23.(本小题9 分)解:(1)设能买 A 种笔记本本,B 种笔记本本,依题意,得2 分解得4 分答:能买A 种笔记本15 本,B 种笔记本15 本5 分(2)设购买A 种笔记本本时共花费W 元,则:6 分依题意,有:,解得7 分在 中,W 随 的增大而增大,又为整数,当8 时,W 最小 48240272(元)8 分答:购买A 种笔记本8 本,B 种笔记本22 本时,花费最少,此时的花费是272 元 9 分24(本小题9 分)解:(1)四边形ABCD 是矩形,AD BC,A
38、D BC 1 分E、F 分别是边AD、BC 的中点,ED FC,ED FC 2 分四边形EFCD 是平行四边形,3 分EFDC 4 分 EFO HGO 5 分(2)过 O 作直线 MN EF 于 M,交 CD 于 N,则 ON DC,MN CF 6,6 分文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3
39、T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3
40、P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T
41、5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:C
42、W3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 H
43、Y3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL
44、2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3 EFO
45、 HGO,7 分 OM 4,ON 2,8 分而,9 分25(本小题13 分)解:(1)A(,1)在直线上,解得2 分A(6,1)在双曲线上,解得4 分如图,过点A 作 AE 轴于 E,过点 M 作 MF 轴于 F,则 MF AE,PMF PAE,即,MF=2 6 分,则,点 M(2,3)7 分A(6,1)、M(2,3),直线 AM 的解析式为.8 分点 P(0,4)9 分(2)如图,设点A 的横坐标为,点 M 的横坐标为,则点 B 的横坐标为;过点 B 作 BC 轴于 C,过点 M 作 MD AE 于 D,10 分MD 轴,AMD APE,即,得 11分MF BC,MFQ BCQ,即,得12
46、分 13 分26(本小题13 分)解:(1)由已知条件,得2 分 3分(2)A(1,0)、B(6,0),BC=AB=5 点 C(6,5)4 分依题意:得(点 C在第一象限,舍弃)点 C(4,5)6 分文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T
47、9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3
48、T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3
49、P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T
50、5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:CW3T3M10N7W5 HY3P2X9A4V5 ZL2T5T9O9W3文档编码:C