题目
小明在桥上测量桥高,他把绳子对折后垂到水面,还余3.6米,把绳子三折后垂到水面,还
提问时间：2021-04-01
答案
桥高：3.6×2（折）-0.4×3（3折）=6米
绳长：（3.6+6）×2=19.2米
绳长：（3.6+6）×2=19.2米
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
- 1现在Tom正在街道对面等车英语怎么说
- 2急求几个关于几个词语的议论文,
- 3His son is ____ enough to make so many nice toys for his friend.
- 4初一的英语演讲 评委会提啥问题
- 5各位高手帮帮忙,解决一下这道数学题,急,谢了
- 6___ ___ ___you come come back? In a week 初一的英语题目
- 7SHUI ZHI DAO GE CI LI YOU WO YUAN ZHANG KAI SHUANG CHI BIAN CHENG TIAN SHI DE GE JIAO SHEN ME
- 8You are the one who always in my heart.
- 9"he got someone to fix his bike" 还可以用"he got "讲(用过去分词） 是什么
- 10my mather does housework every day改一般疑问句
热门考点
- 1i hope you()soon.A.call back me B.will call me back C.calling me back D.to call me back
- 2对地理的认识
- 3英语这句语法什么的对吗 很奇怪
- 4与团结有关的格言警句
- 5A farmer once organized a competition between his dog and his rabbit.He dug a hole in one of his big
- 6be popular with sb例句.play basketball is popular with young people.
- 7luck is in a red hat today同义句替换
- 8she is from china,（ ）.
- 9血型凝集反应的原理是什么
- 10高锰酸钾制取氧气时,改用向上排空气法收集氧气,导气管应插入集气瓶的哪个部位?为什么?