Question

I'll medal to who ever assists me! <3

What is the 43rd term of an arithmetic sequence with a rate of increase of -6 and a11 = 12?}

A.) -174
B.) -176
C.) -180
D.) -186
E.) -240

Arigato! ^-^

Answer 1

HI!!

Answer 2

\[a_{11}=12\] right?

Answer 3

so \[a_{12}=12-6\\
a_{13}=12-2\times 6\\
a_{14}=12-3\times 6\\
a_{15}=12-4\times 6\] etc

Answer 4

reason i am writing it out is because it it confusing with the subscript
do you get what the \(43\) term would be?

Answer 5

did i lose you?

Answer 6

yes you did hahaha @misty1212