How do I find the sum of a finite series? The numbers are
26+29+32+35+38+41+44
.
PLEASE show me all steps taken.

Question

anonymous · Answer

Can you tell what kind of sum this will be ?

anonymous · Answer

the first thing that i notice is that each term is increased by 3 to give the next term. This means that this is an "arithemetic progression", Thus the first term added to the last term will equal the second term added to the second to last term and so on. Using this fact you can sum this easily by simply adding the first and last term, multiplying by the number of terms and then dividing by two (because you will have added the progression twice).

anonymous · Answer

What about Summation Notation?

I have
49+54+59+...for 14 terms and I need to find the summation notation. How do I put these givens into an equation...?

anonymous · Answer

it would be something along the lines of 3x+x0 where x0 is your starting value

anonymous · Answer

if you can tell me the first term, number of terms and increment of increase then i can try and write it in sigma notation

anonymous · Answer

n+5 is the equation. First term is 49.

anonymous · Answer

so you would have $$\sum_{i=1}^{n}5i+44$$

anonymous · Answer

where n is the value of i that computes to the last term of the series