12k-2+6k
find like terms and put them next to each other
12k+6k-2
combine like terms
18k-2
C
The coordinates of the point that is one-half the distance between A(-1,-2) and B(6,12) is (2.5,5)
What is the midpoint?
The mid-point lies midway between the two ends. Its x value lies in the middle of the other two x values. Its y value lies in the middle of the other two y values.
Given, ![A(6,12) = (x_{1}, y_{1} )](https://tex.z-dn.net/?f=A%286%2C12%29%20%3D%20%28x_%7B1%7D%2C%20y_%7B1%7D%20%29)
![B(6,12) = (x_{2}, y_{2} )](https://tex.z-dn.net/?f=B%286%2C12%29%20%3D%20%28x_%7B2%7D%2C%20y_%7B2%7D%20%29)
Let M is a midpoint of AB, then
![M(x,y)=(\frac{x_{1}+x_{2} }{2} ,\frac{y_{1} +y_{2}}{2} )= (\frac{-1+6}{2} ,\frac{-2+12}{2} )=(2.5,5)](https://tex.z-dn.net/?f=M%28x%2Cy%29%3D%28%5Cfrac%7Bx_%7B1%7D%2Bx_%7B2%7D%20%20%7D%7B2%7D%20%2C%5Cfrac%7By_%7B1%7D%20%2By_%7B2%7D%7D%7B2%7D%20%29%3D%20%28%5Cfrac%7B-1%2B6%7D%7B2%7D%20%2C%5Cfrac%7B-2%2B12%7D%7B2%7D%20%29%3D%282.5%2C5%29)
The midpoint of point AB is M(2.5,5)
Therefore, the coordinates of the point which is one-half the distance between A(-1,-2) and B(6,12) is M(2.5,5).
To learn more about the midpoint
brainly.com/question/24676143
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If by decomposition you mean breaking it ino parts then
break it itno 2 triangles and 1 rectangle
left to right
triangle with base y and height h
h=10
y=3
area of traignel=1/2bh
aera=1/2(10)(3)
area=5(3)
area=15
rectangel of legnth x and height h
area=legnth timwe width
x=8
h=10
area=8 times 10
aera=80
last triangle
should be same as other sinces same base (y) and same height (h)
15
add
15+80+15=120
Answer:
g(4)=10
Step-by-step explanation:
Answer:
A
Step-by-step explanation: