Question

Compute the sum of the first 8 terms in the sequence: 100, -50, 25, -12,5. Show work!

Answer 1

Answer:

100, -50, 25, -12.5, 6.25, -3.125, 1.5625, -0.78125

Step-by-step explanation:

Each term is being multiplied by -0.5

How did I know?

Divide the second term by the first.

-50 divided by 100 = -1/2

Find the last four terms.

-12.5 x -1/2 = 6.25

6.25 x -1/2 = -3.125

-3.125 x -1/2 = 1.5625

1.5625 x -1/2 = -0.78125