What are the values of a1 and r of the geometric series?
2 – 2 + 2 – 2 + 2
a. a1 = 2 and r = –2
b. a1 = –2 and r = 2
c. a1 = –1 and r = 2
d. a1 = 2 and r = –1

Consider the given geometric series:

2-2+2-2+2

"A geometric series is a series with a constant ratio between successive terms".

Here, we can observe that the first term 'a' is '2'.

And the common ratio 'r' =

Therefore, the first term 'a' is 2 and common ratio 'r' is '-1'.

So, Option D is the correct answer.

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925