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
Answer:
35% or 0.35
Step-by-step explanation
If 20 grams is 100%, that means each gram is 5% of the whole. So 7 time 5 is 35.
First, put it into point-slope form.
Find the slope:
m=(y2-y1)/(x2-x1)
m=(-6-(-2)/(2-1)
m=(-6+2)/1
m=-4/1
m=-4
Now, put it into point-slope:
y-y1=m(x-x1)
y-2=-4(x-(-6)
y-2=-4(x+6)
y-2=-4x-24
Slope intercept form: y= mx+b
Add 2 to the other side.
y=-4x-22 <== the answer
I hope this helps!
~kaikers
Answer:
(2,2) is the solution of the given lines.
Step-by-step explanation:
Given that,
y = x ..(1)
y = 3x-4 ...(2)
We need to find the coordinates of the point of intersection.
From equation (1) and (2).
x=3x-4
4 = 3x-x
4 = 2x
x = 2
Also,
y = 2
<h3>Hence, the coordinates of the point of intersection is (2,2).</h3>