Question

Please help? The question is posted below ...

Answer 1

For an arithmetic sequence, the domain is restricted to all integers greater than or equal to 1 because a sequence is a set of numbers starting at the 1st term, 2nd term etc. You can't have negative, decimals, or fractions.
The explicit formula for an arithmetic sequence is a_n=a1+d(n-1). In your question, the first term is 9, and the difference is -6 (you are adding -6 each time).
This makes the answer a_n=9-6(n-1) where n is greater than or equal to 1
(the last answer choice is right!)

Answer 2

Thank you so much! I have been having trouble with these. This helps out a lot! Thank you for the explanation. :)

Answer 3

np, any more questions?

Answer 4

I just finished this module on flvs

Answer 5

Can you double check these answers for me, please? @1289florida

Answer 6

1 is correct, let me check #2

Answer 7

Thank you :)

Answer 8

For number 2, I got -334, I'll work you through it...

Answer 9

-226=26+(22-1)d
-252=21d
d=-12

Answer 10

The common difference is -12

Answer 11

a_31=26+(31-1)(-12)
a_31=26+(30)(-12)
a_31=26+(-360) a_31=-334

Answer 12

Oh! Okay, thank you! I see where I calculated wrong.
Thank you so much for the help! I get it now :)