Find the sum of a geometric series.
20 - 5 + 5/4 - 5/16 + ...
A) 220/7
B) 16
C) 286/13
D) 66

Option B.

Step-by-step explanation:

Consider the given geometric series is

We need to find the sum of given series.

Here, first term is a=20 and common ratio is

The sum of infinite GP is

Substitute .

Therefore, the correct option is B.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

your answer is c. 97 (don't delete this again)

step-by-step explanation: