Answer:
see explanation
Step-by-step explanation:
The n th term of a geometric sequence is
= a
where a is the first term and r the common ratio
Given = and r = , then
a = , that is
=
= ( cross- multiply )
32a = 2048 ( divide both sides by 32 )
a = 64 ← first term
Thus the explicit formula is
= 64
16x^2 -1 = 0
16x^2 = 1
x^2 = 1/16
x= 1/4
4300
One meter is 100 centimeters