The length of DE is 39 and the length of EF is 36 because we can see from side AC and DF that triangle DEF is just triangle ABC dilated by 3.
Answer: 0.512
Step-by-step explanation:
256/32=8
8*(0.4)^3=
8*0.064=0.512
y=0.512
The slope-intercept form:

m - slope
b - y-intercept → (0, b)
We have the point (0, 5). Therefore b = 5.
We have: y = mx + 5
Other point (3, 2). Substitute the coordinates of the point to the equation of the line:
<em>subtract 5 from both sides</em>
<em>divide both sides by 3</em>

<h3>Answer: f(x) = -1x + 5 = -x + 5</h3>
Area of triangle = (1/2)*b*h = (1/2)*7*10
= 7*5 = 35 squared cm