山东省梁山县水泊街道初级中学2019-2020学年九年级上学期10月份学业评测数学试题

适用年级:初三
试卷号:607396

试卷类型:学业考试
试卷考试时间:2019/10/31

1.单选题(共1题)

1.
已知2是关于x的方程x2-2mx+3m=0的一个根,并且这个方程的两个根恰好是等腰三角形ABC的两条边长,则三角形ABC的周长为(  )
A.10B.14C.10或14D.8或10

2.选择题(共1题)

2.根据短文内容的理解,选择正确答案。

    In China, there're many different kinds of food. Some of them are very popular. The real Chinese food is dumplings. Now let's talk about them, OK?

    Everyone in China likes dumplings very much, and there are many different kinds of dumplings. Some have meat and vegetables in them, others have sugar, eggs and so on. I like dumplings with vegetables and pork better than any other kind.

    Usually people make dumplings at home. If you have no time to make them, you can buy them from any supermarket. Then you take them home and eat them with vinegar.

    The Spring Festival is very important in China. When it comes, we make dumplings, usually we put a coin(硬币) in a dumpling. If one eats the dumpling with the coin in it, he or she will be lucky in the year.

    In the old days, people couldn't often eat dumplings, because they were very poor. Now our country is becoming stronger and stronger, and our people are richer and richer. We can eat them very often.

    Now tell me, do you like dumplings?

    Welcome to China, and we'll invite you to eat the real Chinese food —dumplings.

3.填空题(共1题)

3.
已知是关于x的一元二次方程x2+(2m+3)x+m2=0的两个不相等的实数根,且满足=﹣1,则m的值是____.

4.解答题(共1题)

4.
某地区2013年投入教育经费2500万元,2015年投入教育经费3025万元.
(1)求2013年至2015年该地区投入教育经费的年平均增长率;
(2)根据(1)所得的年平均增长率,预计2016年该地区将投入教育经费多少万元.
试卷分析
  • 【1】题量占比

    单选题:(1道)

    选择题:(1道)

    填空题:(1道)

    解答题:(1道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:0

    7星难题:0

    8星难题:0

    9星难题:3