Respuesta :

jasondcastellan

Answer:1,-3,-7,-11,-15,-19,-23,-27,-31

Step-by-step explanation:

You just subtract -4 every time.

Answer:

-104.

Step-by-step explanation:

This is an arithmetic sequence with first term 1 and common difference -4.

Sum of n terms = (n/2)[2a1 + (n-1)d]  where a1 = the first term and d=common difference.

S(8) = (8/2) ( 2*1 + (8-1)*-4)

=  4 *  (2  + 7*-4)

= 4 * (-26)

= -104.