1.
The length of the arc of the swing of a pendulum is 120 mm. If the length of the arc of each succeeding swing is decreased by 10%, find the total distance the pendulum travels before it stops.
A.
90 mm
B.
800 mm
C.
1200 mm
D.
1000 mm
Hint
2.
What is the value of
r
in an infinite geometric series if
a
1
= 3 and the sum is 6?
A.
B.
C.
D.
Hint
3.
Write the infinite geometric series in sigma notation if
a
1
= 3 and the sum is 6.
A.
B.
C.
D.
Hint
4.
Write
as a fraction.
A.
B.
C.
D.
Hint
5.
In order to write
as a fraction, by what factor should we multiply
S
in order to obtain a second equation?
A.
10
B.
C.
100
D.
1000
Hint