Asked by Esha
The sum of radii of two spherical balls is 22cm and the difference of their volume is 3050 2/3 cm3. Find the radii of the balls. (take pie=22/7)
Answers
Answered by
bobpursley
r+R=22
PI (r^2-R^2)=3050 2/3
in equation one, solve for r.
Put that into equation 2, and expand to solve for R. There ia a bit of algebra and quadratic equations to navigate.
once you have R, solve equation one for r
PI (r^2-R^2)=3050 2/3
in equation one, solve for r.
Put that into equation 2, and expand to solve for R. There ia a bit of algebra and quadratic equations to navigate.
once you have R, solve equation one for r
Answered by
Anonymous
Thank you so much. I really appreciate it.
Answered by
Anonymous
Text book answers doesnt match my answers. What should i do?
Answered by
Anonymous
i think you've gotten volume mixed up with area. volume formula is 4/3 pi(r)^3 and area formula is pi(r)^2
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