5600/((pi*d^2)/4)=15000 for d show steps please?
回答 (2)
2017-03-31 9:57 am
Multiply both sides by ((pi*d^2)/4)
5600 = 15000((pi*d^2)/4)
Multiply both sides by 4
22400 = (pi*d^2)
Divide both sides by π
22400/π = d^2
Square root both sides
√(22400/π) = d
5600 = 15000((pi*d^2)/4)
Multiply both sides by 4
22400 = (pi*d^2)
Divide both sides by π
22400/π = d^2
Square root both sides
√(22400/π) = d
2017-03-31 9:59 am
5600/((π*d^2)/4)=15000
πd²/4=56/150=28/75
d² = (28/75)(4/π) = (16*7)/(3π*25)
d = ±(4/5)√(7/(3π))
πd²/4=56/150=28/75
d² = (28/75)(4/π) = (16*7)/(3π*25)
d = ±(4/5)√(7/(3π))
收錄日期: 2021-04-24 00:20:42
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170331014311AAA0W1m