Recall that a dilation with center (0, 0) and scale factor
maps
onto
.
Now, triangle ADE is formed by
![A=(0,0),\quad D=(0,2),\quad E=(4,0)](https://tex.z-dn.net/?f=A%3D%280%2C0%29%2C%5Cquad%20D%3D%280%2C2%29%2C%5Cquad%20E%3D%284%2C0%29)
Whereas triangle ABC is formed by
![A=(0,0),\quad B=(0,4),\quad C=(8,0)](https://tex.z-dn.net/?f=A%3D%280%2C0%29%2C%5Cquad%20B%3D%280%2C4%29%2C%5Cquad%20C%3D%288%2C0%29)
In other words, the coordinates of B and C can be obtained by multiplying by 2 the coordinates of D and E.
This means that you get ABC from ADE by dilating with center (0,0) and scale factor 2.
Answer: b
Step-by-step explanation:
Into? Is hard to answer without the rest of the problem
Step-by-step explanation:
look at the picture !
she has to paint actually 6 rectangles :
the 3 tops of the 3 stairs.
and the 3 vertical front boards (the front of each step of the stairs).
what is the area of these rectangles ? summing up all 6 - that is the surface area to be painted.
each top rectangle is clearly
82×19 (19 cm deep) = 1558 cm²
each front board is
82×12 (12 cm high) = 984 cm²
so, in total we have
3×1558 + 3×984 = 4674 + 2952 = 7626 cm²
as surface area to be painted.
Answer:
there is a solution
w= -2
Step-by-step explanation:
4w+4=-4
-4 -4
4w=-8
/4 /4
w=-2