The answer B represent the liner function
Answer:
the answer is ..............
Step-by-step explanation:
Line the decimals up and add like you normally would.But don't forget to put your decimal in your answer
Don't forget to follow me!!!
2040 = n/2(20+(n-1)4)
4080 = n(20+4n-4)
4080= 20n +4n^2 -4n
1020 = 4n + n^2
n^2 +4n -1020 =0
use common formula (can't write out so just look at answers. sorry)
which gives answers of n=-34 and n=30. since n can only be positive, n=30 so there are 30 rows. I liked that challenge
