Find the sum of the first 8 terms of the sequence. Show all work for full credit.

1, -3, -7, -11, ...

Question

Find the sum of the first 8 terms of the sequence. Show all work for full credit.

1, -3, -7, -11, ...

jdoe0001 · Answer

any ideas on the common difference?

anonymous · Answer

no

jdoe0001 · Answer

well... have you covered arithmetic sequences yet?

anonymous · Answer

no i am taking geometry now i am doing this to help out a friend

jdoe0001 · Answer

well... does your friend know what the "common difference" is?

anonymous · Answer

no he lost to can you please help us

jdoe0001 · Answer

well... seems to me he/she would need to cover the section on sequences firstly

if he/she can't understand that section... then  we could cover it, but he/she needs to cover it I'd think

anonymous · Answer

can you just give us the answer

anonymous · Answer

That ruins the spirit of openstudy, and would probably screw over your friend in the future. In other words, he/she should learn it.

jdoe0001 · Answer

can we catch fishes for you?   sure we could

does that help you fish better?  nope, the opposite

anonymous · Answer

please im begging you we really need it that the last question for him to submit his work

anonymous · Answer

we being doing this since dis morning

anonymous · Answer

We could teach you right now.

anonymous · Answer

im in 9th grade im taking geometry

anonymous · Answer

I fail to see what that has to do with anything, knowledge is knowledge.

anonymous · Answer

can you please just do me this favor please

anonymous · Answer

just basic arithmetic equation...just google and find the formula...huuhu