1.
Find the sum of the first five terms of the geometric series for which
a
1
= 2 and
r
= 2.
A.
126
B.
30
C.
62
D.
14
Hint
2.
Determine the sum of the geometric series for which
a
1
= -486,
, and
a
n
= -6.
A.
732
B.
325
C.
322.6
D.
-726
Hint
3.
Identify
a
1
in a geometric series for which
S
8
= 42.5 and
r
= -0.5.
A.
63.75
B.
C.
64
D.
1.5
Hint
4.
Evaluate
.
A.
6
B.
7.5
C.
15
D.
10.5
Hint
5.
Find
a
1
in a geometric series for which S
12
= 3071.25 and
r
= 2.
A.
3
B.
C.
D.
Hint