Find the fourth term of the sequence given by the rule tn= -2(2)^n-1 A) 32 B) -32 C)-1 6 D) 16

Question

asked May 16, 2020 118k views

1 Answer

Ngong · Answer 1 · 2020-05-20T22:30:53+0000

Explanation:

We have a sequence with the following rule:

t_((n))=-2(2)^(n-1)

This gives us the n term of the sequence. Now, if we want to find the fourth term, we have to substitute
by 4:

t_((4))=-2(2)^(4-1)

t_((4))=-2(2)^(3)

t_((4))=-2(8)

Finally:

t_((4))=-16 This is the fourth term of the sequence