The numbers 1, 3, 6, 10, 15, ... are known as triangular numbers. Each triangular number can be expressed as (n(n+1))/2 where n is a natural number. The largest triangular number less than 500 is: A) 16
B) 9
C) 8
D) 5
E) 3
Please include an explanation if you answer, thanks

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation:

sasasadaassasasasa opk ok you know