Evaluate each geometric series described
1-4+16-64, n=6

- 819

Step-by-step explanation:

The sum to n terms of a geometric series is

=

where a is the first term and r the common ratio

Here a = 1 and r = - 4 ÷ 1 = - 4, thus

= = = = - 819

-819

Step-by-step explanation:

This is Geometric series with first term as '1' and a common ratio of '-4' (-4÷1 = -4)

At n=5, the term is (-64×-4) = 256

At n=6, the term is (256×-4) = -1024

1-4+16-64+257-1024 = -819

y-1700=200(x+4)

step-by-step explanation:

200(x+4) is 200x + 800 she is saving 200 per week x is the weeks and the -1700 is. us that’s howmuch she already had

google dat sis

step-by-step explanation: