Which of the following is true regarding the sequence below? 7/12,1/6,-1/4,-2/3 The sequence is arithmetic because there is a common difference of 5/12.
The sequence is arithmetic because there is a common difference of 1.
The sequence is not arithmetic because there is no common difference between the values of n.
The sequence is not arithmetic because there is no common difference between the values of an.

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

step-by-step explanation:

options

10

step-by-step explanation: