+0  
 
0
154
1
avatar+372 

please help me with this math question

cerenetie  Mar 2, 2018

Best Answer 

 #1
avatar+13577 
+2

Volume of a cylinder is area x height = pi r^2 h       We want to find 'r'

v = pi r^2 h    solve for 'r'

 

v/(pi h) = r^2

sqrt (v/(pi h) = r

 

sqrt (18488/(pi*23) = r = 15.995 m = ~ 16 m

 

 

Second one:

Area of cylinder   pi r^2 = 36 pi

 

Volume she ate =  area x  5 cm   (the jar went from 11 cm to 6 cm = 5 cm)

                          =  36 pi x 5  = 565 cm^2     (and now Kelly has heartburn ! )  cheeky

ElectricPavlov  Mar 2, 2018
 #1
avatar+13577 
+2
Best Answer

Volume of a cylinder is area x height = pi r^2 h       We want to find 'r'

v = pi r^2 h    solve for 'r'

 

v/(pi h) = r^2

sqrt (v/(pi h) = r

 

sqrt (18488/(pi*23) = r = 15.995 m = ~ 16 m

 

 

Second one:

Area of cylinder   pi r^2 = 36 pi

 

Volume she ate =  area x  5 cm   (the jar went from 11 cm to 6 cm = 5 cm)

                          =  36 pi x 5  = 565 cm^2     (and now Kelly has heartburn ! )  cheeky

ElectricPavlov  Mar 2, 2018

8 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.