What is the nth term of the geometric sequence 4, 8, 16, 32, ? a. `a_(n)=2(4)^(n-1)` b. `a_(n)=4(2)^(n-1)` c. `a_(n)=2(n)^4` d. `a_n=4(n)^2`

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have