Question

Match the sequence with the correct indicated term.
a43 for 5,9,13,...

Answer 1

here are the answer choices
340
-47
25/2
-175
173
-25/2

Answer 2

Here \(a_1=5\), \(a_2=9\), \(a_3=13\)
Use \(T_n=a_1+(n-1)d\) to find d.
\(T_2=5+(2-1)d\)
\(9=5+d\)
\(d=9-5\)
\(d=4\)
Again use \(T_n=a_1+(n-1)d\) to find \(a_{43}\)
\(T_{43}=5+(43-1)4\)
\(=5+42*4\)
\(=5+168\)
\(=173\)
Is that clear?

Answer 3

im sorry i was doing something give me time to look over it please

Answer 4

Ha k.

Answer 5

where did the d come from and the Tn?

Answer 6

It is a general formula.
\(T_n=a_n\)
d=common difference.
Nw is it clear?

Answer 7

yes i guess

Answer 8

idk im kinda lost is there another way to explain it?

Answer 9

can we just move to another one

Answer 10

i have other examples

Answer 11

\(Tn=a_1+(n-1)d\).is a general formula
Here
\(T_n\)=\(n^{th}\) term
\(a_1\)=First term
d=common difference.
Ya sure post them.

Answer 12

ohk a1 =20, d=4, n=81

Answer 13

Vat do u need to find here?

Answer 14

the same question

Answer 15

same answer choices

Answer 16

I mean whether u need to find the sum or \(a_8\)?

Answer 17

its ohk lol i kinda understand now tht i keep lookin at it im going to just follow your steps