Answer:
True, they form a proportion because their cross-multiplication products are equal.
Step-by-step explanation:
[tex]\frac{49}{21} =\frac{28}{12}[/tex] True or False?
If they are a proportion, the products you get from cross-multiplying are the same.
Multiply the left numerator by right denominator:
49 X 12 = 588
Multiply the left denominator by right numerator:
21 X 28 = 588
588 = 588
Therefore it is true, 49/21 and 28/12 form a proportion.