您的位置: 首页 > 作业答案 > 数学 > 12.5× 10.1-125

12.5× 10.1-125

分类: 作业答案 • 2022-01-09 18:05:27

问题描述：

12.5× 10.1-125
怎样巧算?

答

=12.5*（10+0.1）-125
=12.5*10+12.5*0.1-125
=125+1.25-125
=1.25

一块三角形的菜地,量得它的底是12.5米高是5.6米,这块地的面积是多少米?如果每平方米产白菜15千克,批发价没每千克0.85元,一共可以收入多少元?
用弹簧秤称物体,称2千克的物体,弹簧长12.5cm,称6千克物体弹簧长13.5cm,称5千克物体时,弹簧全长多少厘米?不要y
如图所示,质量是1kg的小球用长为0.5m的细线悬挂在O点,O点距地面高度为1m,如果使小球绕OO'轴载水平面内做圆周运动,若细线最大承受拉力为12.5N.求：（1）当小球的角速度为多大时,线将断裂；（2）断裂都小球落地点与悬点的水平距离.（g=10m/s^2）
求改英语作文.In 1895,UN announce that it is International Volunteers Day on 12.5 every year.So,it is necessary for us to know what is volunteer.The volunteer is that a person do something for another who need help.Of course,we support them for free.Briefly,We should be helpful to people.Now,we need to know something about the spirit of volunteer`s sever.First,they should have skill and willing to help people.Second,we must be honest and goodness.Last but no
2013×八分之三＋20.13×12.5+201.
用弹簧秤称物体,称2kg的物体,弹簧长12.5cm;称6kg的物体,弹簧长13.5cm.如果称5kg的物体,弹簧长多少厘米用比例方法解答
用弹簧秤称物体，称2千克的物体，弹簧长12.5厘米；称6千克的物体，弹簧长13.5厘米．没有称物体时，弹簧长______厘米．
请问：在一个直角三角形中,两个直角边分别是12.5CM和45CM请问另一边和两个锐角是多少,
12.5毫克等于几吨,
毫克,克,千克,吨的进度.12.5毫克等于多少吨
关於简谐运动的题目
sue used to be terrified of the

12.5× 10.1-125

相关推荐