Answer the question below?

Question

anonymous · Answer

$$\sum_{a=5}^{9} (5a^2-1)$$

anonymous · Answer

see yal been helping me o much I would lover to return the favor..i don't know what math that is but it just made me cross eyed lol

anonymous · Answer

I don't get it either and I have a final tomorrow too!

anonymous · Answer

omg LAWD...I swear I cannot waituntil I never have to hear the word geometry again...I have all A's and B's except fo rthat stubborn C in geometry

anonymous · Answer

I'm in algebra 2, and I did pretty well during the semester, but I forgot everything for the final exam.

anonymous · Answer

ill be in alg 2 next year..im scared..thats y I made sure that tat was my only basic class next year...what grade r u in?

anonymous · Answer

I took algebra 1 twice, so I was pretty good at algebra before entering the class and it was a lot better than geometry. I just forgot everything easily. I'm a junior.

anonymous · Answer

oh yea ill be a junior next year..so your a upcoming senior

anonymous · Answer

well ill consider myself a junior In a couple days

anonymous · Answer

Yup, good luck for your finals!

anonymous · Answer

thanks, same too you :)

anonymous · Answer

Just plug in a=5, a=6, a=7, a=8, and a=9 and add your results together.

anonymous · Answer

Oh all the way to 9? I guess I was looking to use the series sum equations.

anonymous · Answer

I don't know why I didn't think of that...