This is a diagram of a staircase railing. Which is a true statement about the measure of angle DCJ marked rº on the diagram? (Pi
cture included)
Additional Information: AG || ray CJ and ray AD || ray FJ
A. It equals 30 degrees by the alternate interior angles theorem
B. It equals 30 degrees by the corresponding angles postulate
C. It equals 50 degrees by the alternate interior angles theorem
D. It equals 50 degrees by the corresponding angles postulate
Additional Information: AG || ray CJ and ray AD || ray FJ
A. It equals 30 degrees by the alternate interior angles theorem
B. It equals 30 degrees by the corresponding angles postulate
C. It equals 50 degrees by the alternate interior angles theorem
D. It equals 50 degrees by the corresponding angles postulate
2 answers:
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Answer:
Th Range is [0, -∞)
Step-by-step explanation:
f(x) = 2 - x
w(x) = x - 2
We want to find the range of (f * w)(x).
First, we need to find (f * w)(x), which is the multiplication of the function f(x) and the function w(x). Lets use algebra to find (f * w)(x):
This is a quadratic function (U shaped), or a parabola. The graph is attached.
The range is the set of y-values for which the function is defined.
We see from the graph that the parabola is upside down and the highest value is y = 0 and lowest goes towards negative infinity. So the range is from 0 to negative infinity. Or,
0 < y < ∞
In interval notation, that would be:
[0, -∞)
