Question

Somebody pls help with no. 5

Answer 1

Answer:

a) is -7

Step-by-step explanation:

8=2048$(2)^{n-1}$

$\frac{8}{2048} =\frac{2048^{n-1} }{2048}$

8/2048=0.00390625 = $(2)^{n-1}$

$2^{-8}$ = 0.00390625

-8-1=-7

and do the rest with the same equation which is tn=a$r^{n-1}$