6×500=3000
6×30=180
6×2=12
3000+180+12=3182
3182 is the final answer
You can use the divergence theorem:

has divergence

Then the rate of flow out of the cylinder (call it <em>R</em>) is

(by divergence theorem)

(after converting to cylindrical coordinates)
whose value is 0.
Answer: 
Step-by-step explanation:
Given, A class has five boys and nine girls.
Total students = 5+9=14
Number of ways to choose 6 students out of 14=
[Using combinations]
Number of ways to choose 4 girls out of 6 (4 girls + 2 boys = 6 ) = 
If the teacher randomly picks six students, then the probability that he will pick exactly four girls:-


hence, the required probability =
.