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March 31, 2015

March 31, 2015

Posted by **Linda** on Monday, April 2, 2012 at 4:30am.

Please explain

- Math -
**Steve**, Monday, April 2, 2012 at 10:46amh = 2r, so

v = 1/3 pi r^2 * 2r = 2pi/3 r^3

dv/dt = 2pi r^2 dr/dt

10 = 2pi*4^2 = 32pi dr/dt

dr/dt = 5/16pi

now, c = 2pi*r, so

dc/dt = 2pi dr/dt

= 2pi * 5/16pi = 10/16 = 5/8

- Math -
**Gabriel**, Sunday, November 18, 2012 at 10:29pmPauline jogs at 5 1/3 miles per hour for 1 5/6 hours. about how many miles has she walked?

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