document.write( "Question 40241: Racquetball.
\n" ); document.write( "The volume of rubber (in cubic centimeters) in a hollow rubber ball used in racquetball is given by
\n" ); document.write( " V = 4/3 ∏ R3 – 4/3 ∏ r3
\n" ); document.write( "Where the inside radius is r centimeters and the outside radius is R centimeters.
\n" ); document.write( "a) Rewrite the formula by factoring the right-hand side completely.
\n" ); document.write( "b) The accompanying graph (in the text) shows the relationship between r and V when R = 3. Use the graph to estimate the value of r for which V = 100 cm3. \n" ); document.write( "

Algebra.Com's Answer #25745 by fractalier(6550) $\"\"$ $\"About$

You can put this solution on YOUR website!
Well I cannot manage the graphing part here but the factoring goes like this...
\n" ); document.write( "4/3(pi)R^3 - 4/3(pi)r^3 =
\n" ); document.write( "(4/3)(pi)(R^3 - r^3) =
\n" ); document.write( "(4/3)(pi)(R - r)(R^2 + Rr + r^2) \n" ); document.write( "

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