Question
Find the tenth term and sum of 8, 4, and 0
Answers
oobleck
a = 8
d = -4
a10 = a+9d
S3 = 3/2 (2a+2d)
So now just plug and chug
d = -4
a10 = a+9d
S3 = 3/2 (2a+2d)
So now just plug and chug