# Math (Combinatorics)

posted by .

How many ways to rearrange 9 a's, 2 b's, and 2c's so that we never see bc and both b's always appear before both c's?

## Similar Questions

1. ### algebra

7/11 - 2x < 3/10; {1/2, 1/3, 1/4, 1/5, 1/6} Rearrange the inequality to get add 2x to both sides 7/11 < 3/10 +2x subtract 3/10 from both sides 7/11 - 3/10 < 2x divide by both sides 2 (1/2)(7/11 - 3/10) < x Can you finish …
2. ### chemistry-graphing

What is the point of plotting data in both Kelvin and Celsius degrees?
3. ### science

rearrange this equation 2 make x the subect. 6y = 9 - 3x so first i add 3x to both sides which makes it 3x - 6y = 9 then do i divide both sides by 9 or wat?
4. ### Algebra

Solve Q= (N-S)/ N for N So when I multiply both sides by N I get Q(N)= N-S I know I am doing something wrong, the answer is in the book which is N=S/(1-Q)but I don't understand were the 1 comes from. Could you write it out step by …
5. ### Early Child Ed.

Yes. Temper tantrums are usually caused by a child's frustrations and is strictly emotional. B. is the best answer. By the way, beware of any answer that says "always" or "never." When you're working with people, there are almost no …
6. ### science

in a symbiotic relationship a) both organisms always benefit b) both organisms are harmed c) both organisms never benefit d) at least one organism always benefits e) neither organisms is affected d