1.1/a-1/x-b=1/y find b
2. v=1/3kr²h if v=198 k=22/7 r=3 find h
問2題數學題~
2006-12-04 4:46 am
回答 (2)
2006-12-04 4:52 am
✔ 最佳答案
(1).1/a - 1/x - b = 1/y
1/a - 1/x = 1/y + b
b = 1/a - 1/x - 1/y
(2).
v = 1/3 k r² h
198 = 1/3 (22/7) (3)² h
198 = (22/7) (3) h
66 = (22/7) h
h = 21
參考: Me
2006-12-04 8:10 am
(1) 1/a - 1/x - b = 1/y
b = 1/a - 1/x - 1/y
(2) v = 1/3khr^2
198 = 1/3(22/7)(9)h
h = (198/9)(3)(7/22)
h = 1386/66
h = 21
b = 1/a - 1/x - 1/y
(2) v = 1/3khr^2
198 = 1/3(22/7)(9)h
h = (198/9)(3)(7/22)
h = 1386/66
h = 21
參考: 自己
收錄日期: 2021-04-12 22:15:33
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061203000051KK05075