搜题请搜索小程序“爱下问搜题”
问题 填空题

由x+6=1-3x得x+3x=1-6，这步变形叫______，变形的依据是______．

答案

由x+6=1-3x得x+3x=1-6，这步变形叫移项，变形的依据是等式的性质．

单项选择题

A pension fund expects to pay obligations of $ 5000000 4 years from today. The fund will fund this obligation by making 5 annual, equal deposits into an account earning 3% , with the first deposit occurring today, and the last occurring at the time the obligation is due. What size must each annual deposit be（）

A. $ 904874.

B. $ 941773.

C. $1125662.
查看答案
填空题

请你写出一种几何体，使得它的主视图、左视图和俯视图都一样，它是______．
查看答案