find the number of terms in this series, the first term, and the last term. then evaluate the sum.

Question

anonymous · Answer

the equ$$\sum_{n=2}^{10}(\frac{ 1 }{ 2 }n+3)$$ation is

anonymous · Answer

help please @whpalmer4

whpalmer4 · Answer

do you understand the notation?

anonymous · Answer

no i have never really done one of these

whpalmer4 · Answer

Okay, you could read that as "the sum of the values of $\frac{1}{2}n+3$ as $n$ goes from $2\text{ to }10$"

whpalmer4 · Answer

I don't think I'm really giving anything away by telling you what those values are:

$$4,\frac{9}{2},5,\frac{11}{2},6,\frac{13}{2},7,\frac{15}{2},8$$

anonymous · Answer

so there are 9 terms and the 9 terms can be found using the equation 
$$\frac{ 1 }{ 2 }n+3$$
right

whpalmer4 · Answer

But did you calculate the sum?

anonymous · Answer

yes i did thank you i have another question for you im about to post it will you help

whpalmer4 · Answer

sure.  what did you get for the sum?