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秘密★启用前试卷类型:A2016年潍坊市初中学业水平考试数学试题2016.6注意事项:1.本试题分第Ⅰ卷和第Ⅱ卷两部分.第Ⅰ卷2页,为选择题,36分;第Ⅱ卷2页,为非选择题,84分;共120分.考试时间为120分钟.2.答卷前务必将试题密封线内及答题卡上面的项目填涂清楚.所有答案都必须涂、写在答题卡相应位置,答在本试卷上一律无效.第Ⅰ卷选择题(共36分)一、选择题(本题共12小题,在每个小题给出的四个选项中,只有一项是正确的,请把正确的选项选出来,每小题选对得3分,选错、不选或选出的答案超过一个均记0分)1.计算:3022=()A.81B.81C.0D.82.下列科学计算器的按键中,其上面标注的符号是轴对称图形但不是中心对称图形的是()A.B.C.D.3.如图,几何体是由底面圆心在同一条直线上的三个圆柱构成的,其俯视图是()A.B.C.D.4.近日,记者从潍坊市统计局获悉,2016年第一季度潍坊全市实现生产总值1256.77亿元,将1256.77亿用科学记数法可表示为(精确到百亿位)()A.111021.B.111031.C.111031.D.1210130.5.实数a,b在数轴上对应点的位置如图所示,化简2aab的结果是()A.2abB.2abC.bD.b6.关于x的一元二次方程220xxsin有两个相等的实数根,则锐角等于()A.15°B.30°C.45°D.60°7.木杆AB斜靠在墙壁上,当木杆的上端A沿墙壁NO竖直下滑时,木杆的底端B也随之沿着射线OM方向滑动.下列图中用虚线画出木杆中点P随之下落的路线,其中正确的是()POBMNANAPOBMNAPOBMNAPOBMA.B.C.D.8.将下列多项式因式分解,结果中不含有因式1a的是()A.21aB.2aaC.22aaD.22221aa9.如图,在平面直角坐标系中,M与x轴相切于点80A,,与y轴分别交于点04B,和点016C,,则圆心M到坐标原点O的距离是()A.10B.82C.443D.24110.若关于x的方程3333xmmxx的解为正数,则m的取值范围是()A.92m<B.92m<且32mC.94m>D.94m>且32m11.如图,在RtABC中,=30A,23BC,以直角边AC为直径作O交AB于点D,则图中阴影部分的面积是()A.153342B.153322C.7346D.732612.运行程序如图所示,规定:从“输入一个值x”到“结果是否>95”为一次程序操作,如果程序操作进行了三次才停止,那么x的取值范围是()x×2+1>95停止输入是否A.11xB.1123x<C.1123x<D.23xab0MyCBOAxADBC数学试题(A)第1页(共4页)数学试题(A)第2页(共4页)DCFBEAMNDCGAEBFF'E'P图1图2第Ⅱ卷(非选择题共84分)说明:将第Ⅱ卷答案用0.5mm的黑色签字笔答在答题卡的相应位置上.二、填空题(本大题共6小题,共18分,只要求填写最后结果,每小题填对得3分)13.计算:3327=_______________.14.若23nmxy与41nnxy是同类项,则mn_______________.15.超市决定招聘广告策划人员一名,某应聘者三项素质测试的成绩如表:测试项目创新能力综合知识语言表达测试成绩(分)708092将创新能力、综合知识和语言表达三项测试成绩按5:3:2的比例计入总成绩,则该应聘者的总成绩是_______________分.16.已知反比例函数0kykx的图象经过31,,则当13y<<时,自变量x的取值范围是.17.已知60AOB,点P是AOB的平分线OC上的动点,点M在边OA上,且4OM,则点P到点M与到边OA的距离之和的最小值是_______________.18.在平面直角坐标系中,直线l:1yx与x轴交于点1A,如图所示依次作正方形111ABCO、正方形2221ABCC、…、正方形1nnnnABCC,使得点1A、2A、3A、…在直线l上,点1C、2C、3C、…在y轴正半轴上,则点nB的坐标是_______________.三、解答题(本大题共7小题,共66分,解答要写出必要的文字说明、证明过程或演算步骤.)19.(本小题满分6分)关于x的方程2380xmx有一个根是23,求另一个根及m的值.20.(本小题满分9分)今年5月,某大型商业集团随机抽取所属的m家商业连锁店进行评估,将各连锁店按照评估成绩分成了ABCD、、、四个等级,绘制了如图尚不完整的统计图表.评估成绩n(分)评定等级频数90100nA28090n<B7080n<C1570n<D6根据以上信息解答下列问题:(1)求的m值;(2)在扇形统计图中,求B等级所在扇形的圆心角的大小;(结果用度、分、秒表示)(3)从评估成绩不少于80分的连锁店中任选2家介绍营销经验,求其中至少有一家是A等级的概率.21.(本小题满分8分)正方形ABCD内接于O,如图所示,在劣弧AB上取一点E,连接DE、BE,过点D作DF∥BE交O于点F,连接BFAF、,且AF与DE相交于点G,求证:(1)四边形EBFD是矩形;(2)DGBE.22.(本小题满分9分)如图,直立于地面上的电线杆AB,在阳光下落在水平地面和坡面上的影子分别是BCCD、,测得6BC米,4CD米,150BCD,在D处测得电线杆顶端A的仰角为30,试求电线杆的高度(结果保留根号)23.(本小题满分10分)旅游公司在景区内配置了50辆观光车共游客租赁使用,假定每辆观光车一天内最多只能出租一次,且每辆车的日租金x(元)是5的倍数.发现每天的营运规律如下:当x不超过100元时,观光车能全部租出;当x超过100元时,每辆车的日租金每增加5元,租出去的观光车就会减少1辆.已知所有观光车每天的管理费是1100元.(1)优惠活动期间,为使观光车全部租出且每天的净收入为正,则每辆车的日租金至少应为多少元?(注:净收入=租车收入-管理费)(2)当每辆车的日租金为多少元时,每天的净收入最多?24.(本小题满分12分)如图,在菱形ABCD中,2AB,60BAD,过点D作DEAB于点E,DFBC于点F.(1)如图1,连接AC分别交DEDF、于点MN、,求证:13MNAC;(2)如图2,将EDF以点D为旋转中心旋转,其两边DE'DF'、分别与直线ABBC、相交于点GP、,连接GP,当DGP的面积等于33时,求旋转角的大小并指明旋转方向.25.(本小题满分12分)如图,已知抛物线213yxbxc经过ABC的三个顶点,其中点01A,,点910B,,AC∥x轴,点P时直线AC下方抛物线上的动点.(1)求抛物线的解析式;(2)过点P且与y轴平行的直线l与直线ABAC、分别交于点EF、,当四边形AECP的面积最大时,求点P的坐标;(3)当点P为抛物线的顶点时,在直线AC上是否存在点Q,使得以CPQ、、为顶点的三角形与ABC相似,若存在,求出点Q的坐标,若不存在,请说明理由.lB3yC3C2C1OA1A2A3B2B1xDABC60%30°ADCBOGAEBCDF数学试题(A)第3页(共4页)数学试题(A)第4页(共4页)yxBCEAOPFl2016年潍坊市初中学业水平考试数学试题(A)参考答案及评分标准2016.6一、选择题(本大题共12小题,每小题选对得3分,共36分)BDCBABDCDBAC二、填空题(本大题共6小题,每小题填对得3分,共18分)13.1214.315.77.416.31x<<17.2318.1221nn,三、解答题(本大题共7小题,共66分)19.(本大题满分6分)解:设方程的另一个根是1x,由一元二次方程根与系数的关系,得:112332833mxx····························································································································2分由②,得14x·········································································································································3分代入①,得2433m解得10m·················································································································································5分所以,方程的另一个根是4,m的值是10.···························································································6分20.(本大题满分9分)解:(1)由统计图表知,评定为C等级的有15家,占总评估连锁店数的60%,则=1560%=25m···································································································································3分(2)由题意知B等级的频数为252156=2·············································································4分则B等级所在扇形的圆心角大小为5360=28825.········································································································································5分=2848'·······················································································································································6分(3)评估成绩不少于80分的为AB、两个等级的连锁店.A等级有两家,分别用12AA、表示;B等级有两家,分别用12BB、表示.画树状图如下:A1A2B1B2A2B1B2A1B1B2A1A2B2A1A2B1·····································································································8分或列表如下:············································8分由树状图或列表可知,任选2家共有12种可能的情况,其中至少有一家是A等级的情况有10种.所以,从评估成绩不少于80分的连锁店中任选2家,其中至少有一家是A等级的概率105126p.························································································································································9分
本文标题:2016年潍坊市学业水平考试数学试题(嵌入字体)
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