Write the sigma notation for the geometric series from the following finite geometric sequence: 100, 80, 64.(1 point)

Question

Responses

∑100n=13(0.8)n−1
sigma-summation underscript n equals 1 overscript 100 End Scripts 3 left parenthesis 0.8 right parenthesis superscript n minus 1 baseline

∑3n=1100(0.8)n−1
sigma-summation underscript n equals 1 overscript 3 End Scripts 100 left parenthesis 0.8 right parenthesis superscript n minus 1 baseline

∑3n=11.2(100)n−1
sigma-summation underscript n equals 1 overscript 3 End Scripts 1.2 left parenthesis 100 right parenthesis superscript n minus 1 baseline

∑3n=1100(3)n−1

Answer 1

σ100n=13(0.8)n-1