F(x) = 1/2x^2 is a variation of the basic graph y = x^2 (the squaring function).
The graph of the squaring function has the shape of a parabola that opens up. Its vertex is at (0,0).
The graph of F(x) = (1/2)x^2 has the same shape, but is compressed vertically by a factor of (1/2). The vertex of F(x) = (1/2)x^2 is still (0,0). That eliminates the first 2 possible answers. Note that F(1) = (1/2)(1)^2 = 1/2. The point (1, 1/2) is on the third graph, but not on the fourth. Thus, the third graph is correct.
Answer:
21 (42 for original, 21 is the angle measure divided by 2)
Step-by-step explanation:
First let's start by finding the value of x.
We know that Angle BCA is equivalent to 180-8x+30 so Angle BCA = 210-8x.
Since angles in a triangle add up to 180:
4x+8+2x+2+210-8x=180
-2x=-40
x=20
Now we plug 20 in for x
2x+2=2(20)+2=42
The question asks for the angle measure to be divided by 2 so...
42/2=21
Answer:
yes you are right I think
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