Question

Find the ninth term of the

Answer 1

Answer:

$a_{9}$=0.00015241579

Step-by-step explanation:

Use the formula for geometric sequences:

$a_{n}$=$a_{1}$$r^{n-1}$

Substitute 1 in for $a_{1}$, -1/3 in for r, and 9 in for n

$a_{9}$=(1)(-1/3^9-1)

$a_{9}$=(1)(-1/3^8)

$a_{9}$=(1)(0.00015241579)

$a_{9}$=0.00015241579

Hope this helps! :)