Question

Find a˅13 when a˅1= -3 and d=2

Answer 1

So you recall the geometric formula

\[an = ar ^{n-1}\]

so r = 2 and a1 = -3

Answer 2

I cannot tell what sign that is

Answer 3

here solve this for an..

\[an = (-3)(2)^{13-1}\]

Answer 4

-6\[^{12}\]

Answer 5

-6^12

Answer 6

No remember your bedmass

Answer 7

so what is 2^12?

Answer 8

4069

Answer 9

so now what is -3 x 4069 ?

Answer 10

-12207

Answer 11

Try again....

Answer 12

I keep getting -12207

Answer 13

your right