题目
一个圆柱形水桶,底面周长是12.56分米,高是5分米,装了五分之三痛水,这个水桶装有多少升水?
提问时间:2020-12-25
答案
底面半径:12.56/3.14/2=6/2=3(分米)
底面积:3x3x3.14=9x3.14=28.26(平方分米)
水桶体积:28.26x5=141.3(立方分米)
水桶装水:141.3x五分之三=84.78(立方分米)
84.78立方分米=84.78升
底面积:3x3x3.14=9x3.14=28.26(平方分米)
水桶体积:28.26x5=141.3(立方分米)
水桶装水:141.3x五分之三=84.78(立方分米)
84.78立方分米=84.78升
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
热门考点
- 1The old man and his family m____ were very thankful to Zhang Hua.
- 2The best feeling in the world is when you hug someone,and they hug you back even tighter是什么意思
- 31.What do you think are the biggest changes that can happen in a person’s life?(i.e.getting married,
- 4分解因式2x²-3xy-4y²
- 5以知圆C:x的平方+y的平方-2x-2y+1=0,直线L:y=kx,且L#与园C相交与P,Q两点,点M(0,b),且MP垂直于MQ,当b=1,求k
- 6What Mary did yesterday made her mother[ ]
- 7英语翻译
- 8we will be conscious that our time is precious.这里的that是什么从句?
- 9they learn english at school ______ by themselves.
- 10改被动句we often hear kim say sorry to his teacher