Question

Find the 8th term of the arithmetic sequence:
-3.2, -3.4, -3.6, -3.8, ...

Answer 1

\[\huge{\color{green}{T_n=a+(n-1)d.}}\]

Answer 2

Notice that the common difference is -3.4 - (-3.2).

Answer 3

what' di i plug in for d?

Answer 4

*do

Answer 5

The eighth term will be when n = 8
an = 91 + (n - 1)(-9)
when n = 8
a8 = 91 + (8 - 1)(-9)
a8 = 91 + 7(-9)
a8 = 91 - 63
a8 = 28
The eighth term is 28

Answer 6

Simplify \(-3.4 - (-3.2)\)

Answer 7

Careful - @best.shakir is not correct.

Answer 8

sorry

Answer 9

We calculate : common difference : a_2 - _1 ..

Answer 10

common diff. = a_2 - a_1

Answer 11

yes, i just found that out. it's alright. THANK YOU @maheshmeghwal9! The answer is -4.6 :)

Answer 12

Yep!

Answer 13

good ..

Answer 14

=D thank you guys!

Answer 15

yw @yodawgiheardyolikedawgs :D