The two terms 3z^2 and -2z^2 are unlike or like terms?

They would be like terms because as you can see, there is only 1 difference. In the expression 3z^2 and 2z^2 the only difference is that the first two numbers are different.

I think this would be unlike. It doesn't matter if the numbers are similar to one another or not, as long as the numbers match. The negative 2 would make this an unlike term..

answer are

step-by-step explanation:

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