arrange the digits 1,2,3,4,5,6,7,8, and 9 into three groups. Make one group of two digits, one group of three digits, and one group of four digits. When you multiply the first group of two digits by the second group of three digits you get the four digit number as your answer. You can only use each number once.

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

8

step-by-step explanation:

the photograph is photographer and- in the process- ourselves.

step-by-step explanation:

answer: two angles are called supplementary if they add up to 180°. example: the two angles (140° and 40°) are supplementary because they add up to 180°.

step-by-step explanation: