Question

help... please? :c

Answer 1

Find the sum of the arithmetic sequence.

-10, -7, -4, -1, 2, 5, 8

Answer 2

its +3

Answer 3

no .-. no its not.....

Answer 4

It Isnt? o_O -10 + 3 equals -7, because the rule for adding unlike intergers is "different signs, subtract and take the sign of the bigger number. so it has to be +3

Answer 5

Youve got 11, -70, 0,and -7 as choices take your pick .-. cuz i wouldhave thought it was +-3 too....

Answer 6

use this formula (attached)

a is the first term
d is the difference
n is the number of terms

Answer 7

so 8/2(2*-10-(8-1)3) or -10+(8-1)3 ?

Answer 8

well -10+-60 =-70 which is one of my answers so thankyou