Question

What is the 41st term of the arithmetic sequence where a1 = 17 and a15 = -39 ?

Answer 1

is a15 the last term of the sequence>

Answer 2

Yes, a15 is the last term! Would you like me to give you the multiple choice options to guide your thought-process?

Answer 3

yup sure

Answer 4

What is the 41st term of the arithmetic sequence where a1 = 17 and a15 = -39 ?

Answer 5

oops sorry wrong paste...

Answer 6

tablets suck sometimes...

Answer 7

Select one:
A. -147
B. -143
C. -139
D. -135

Answer 8

wait how can a15 be the last term when they r asking for the 41st term xD

Answer 9

hehehehe *whispers* "Magic."

Answer 10

It's -143

Answer 11

im getting B by using the formula an=a+(n-1)xd
first find d by plugging the values an is -39 and a is 17 n is 15 so u get d as -4 now take the equation again but this time you are finding an so then the n is 41 so u get B

Answer 12

nice magic XD

Answer 13

turns out it wasnt the last term XD

Answer 14

woah woah there ;) I'm detecting some mild sass? Ok well sass master would you mind helping me since you seem to know everything?

Answer 15

thank you both by the way. Senioritis has hit full-blown.

Answer 16

lol sure thing xD

Answer 17

im not that good in maths but these r easy for me :p

Answer 18

at*

Answer 19

I'll close this question so that I can open a new one and give you more medals! ;)

Answer 20

lol yay ;)

Answer 21

oh pshhh you are amazing at math!

Answer 22

You're welcome. Luckily for me my girlfriend took pre-calculus in college last semester and I saw
some of this stuff in Differential Equations

Answer 23

okie then question xD