Problem
COM-B1-M03-P011 Identical Balls
#11
★★☆☆☆ Level 2 of 5
How many nonnegative solutions does \(x+y+z=8\) have?
Use \(8\) ones and \(2\) dividers.
The string consists of \(8\) ones and \(2\) dividers, \(10\) symbols total. Choose the divider positions: \(\binom{10}{2}=45\).
First stars and bars.