Example:
3nsub3-4nsub2+9n-12
Answer: yes, it is
Step-by-step explanation:
A number is divisible by 6 if it is divisible by 2 and 3 simultaniously.
n = k(k+1)(k-1)
If k-1 is a multiple of 3, n is divisible by 3, so one of the requirements is ok.
Now, if k-1 is a multiple of 3, it can be even or odd.
if k-1 is even, then it is divisible by 2 and as it is divisible by 3 as well, n is divisible by 6
if k-1 is odd, then k and k+1 is even, hence, divisible by 2.
As n = k(k+1)(k-1), n is also divisible by 6.
The answer is C for me! hope this helps good luck.
Answer:
(1 + y)(x + 2y)
hope this is right
Step-by-step explanation:
Well you know that this stadium holds 50,000 people, you also know that it has 250 different seating sections. so you take 50,000 and divide that by 250 and your answer is 200. So there are 200 seats in each section. :)
