AP:what is the radius of a cylindrical soda can with volume

学习 时间:2026-04-07 23:59:28 阅读:658
AP:what is the radius of a cylindrical soda can with volume of 512 cubic inches that will usewhat is the radius of a cylindrical soda can with volume of 512 cubic inches that will use the minimum material?

最佳回答

野性的雪碧

酷炫的悟空

2026-04-07 23:59:28

V = pi*r^2*h = 512
A = 2*pi*r*h + 2*pi*r^2
h = 512/(pi*r^2)
A = 2*pi*r*512/(pi*r^2) + 2*pi*r^2 = 1024/r + 2*pi*r^2
dA/dr = -1024/r^2 + 4*pi*r = 0
r = 4。3554
还是要英文翻译?

最新回答共有2条回答

  • 可爱的樱桃
    回复
    2026-04-07 23:59:28

    V = pi*r^2*h = 512A = 2*pi*r*h + 2*pi*r^2h = 512/(pi*r^2)A = 2*pi*r*512/(pi*r^2) + 2*pi*r^2 = 1024/r + 2*pi*r^2dA/dr = -1024/r^2 + 4*pi*r = 0r = 4。3554 还是要英文翻译?

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