(0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.9)除以(0.1*0.2*0.4+0.2*0.4*0.8+0.3*0.6*1.2)
(0.1*0.3*0.9+0.2*0.6*1.8+0.3*0.9*2.9)除以(0.1*0.2*0.4+0.2*0.4*0.8+0.3*0.6*1.2)
数学人气:700 ℃时间:2019-10-11 16:15:08
优质解答
(0.1×0.3×0.9+0.2×0.6×1.8+0.3×0.9×2.9) / (0.1×0.2×0.4+0.2×0.4×0.8+0.3×0.6×1.2)=(1×3×9+2×6×18+3×9×29) / (1×2×4+2×4×8+3×6×12)=27×(1+8+29) / [...
我来回答
类似推荐
猜你喜欢
- 1如图,点p是等边△ABC内的一点,分别连接PA PB PC,一BP位边作∠PBQ=60°,且BQ=BP,连接CQ.
- 2未知浓度的盐酸10克,加入足量的硝酸银溶液,反应后生成5.74克氯化银沉淀.(1)求该酸的溶质质量分数多少?
- 3How are you getting (on) (with) your vacation 为什么用on with
- 4【高一物理】一道求摩擦力的题目》》
- 5The girl in red is my history teacher.对The girl in red提问
- 6She doesn't decide if to go to the cinema or to watch TVat home 改错
- 7造几个一般现在时的句子 1肯定句 2.否定句 3.一般疑问句 4、特殊疑问句
- 8放学后,小红和小娜从学校门口分手,各自向相反反向走去,5分钟后两人相距400米,已知小红每分钟走42米.
- 9英雄人物说的名人名言
- 10一道物理题.关于速度的