Answer:
The length of the segment AB is 18.8 cm or 1.88 dm
Step-by-step explanation:
<u><em>The question in English is</em></u>
Points A, B and C are collinear in this order. Find the length of the segment: a) AB, if AC = 20 cm, BC = 0.12 dm
we have that
----> by Addition segment postulate
substitute the given values in centimeters
Remember that
![1\ dm=10\ cm](https://tex.z-dn.net/?f=1%5C%20dm%3D10%5C%20cm)
so
![0.12\ dm=0.12(10)=1.2\ cm](https://tex.z-dn.net/?f=0.12%5C%20dm%3D0.12%2810%29%3D1.2%5C%20cm)
![20=AB+1.2](https://tex.z-dn.net/?f=20%3DAB%2B1.2)
solve for AB
![AB=20-1.2\\AB=18.8\ cm](https://tex.z-dn.net/?f=AB%3D20-1.2%5C%5CAB%3D18.8%5C%20cm)
Convert to dm
![18.8\ cm=18.8/10=1.88\ dm](https://tex.z-dn.net/?f=18.8%5C%20cm%3D18.8%2F10%3D1.88%5C%20dm)
therefore
The length of the segment AB is 18.8 cm or 1.88 dm
694.407 and there is a cap over the three numbers at the very end
It would be choice b.
The domain is the range of x values which in this case is from -5 to 3.