Find S22 for -6 + (-4) + (-2) + 0 …

Question

anonymous · Answer

anonymous · Answer

@summer1nthec1ty did u understand by seeing that link

anonymous · Answer

no that did nothing...

anonymous · Answer

then @Jonask will explain .i think he is good at explanation

anonymous · Answer

the first term is a=-6,and the difference is -4-(-6)=2
the formular for any arithmetic sequence is

anonymous · Answer

Do u knw to find sum of an ap

anonymous · Answer

@summer1nthec1ty

anonymous · Answer

yahoo stop you're embarrassing yourself

anonymous · Answer

in that link u can click show steps so that u can clear ur doubts

anonymous · Answer

d =  t2 -t1

anonymous · Answer

$$ S _{n}=n/2[2a+d(n-1)]$$

anonymous · Answer

JONASK i hate to say it but these equations are not helping me at all...

anonymous · Answer

wat do u mean @summer1nthec1ty  do u want me to go

anonymous · Answer

do you know the answer, if not then please go (:

anonymous · Answer

a. 330
		
b. 332
		
c. 334
		
d. 336

^^ those are the answers which is the right one

anonymous · Answer

@Jonask  plzz dont spell the answer make her to do

anonymous · Answer

$$S _{22}=22/2[2(-6)+(22-1)(2)]=11(30)$$
use your calculator to substitute

ash2326 · Answer

@summer1nthec1ty here on Open Study, we just don't give answers. Please try to understand the solution.
Just answers won't help you much.
Thanks