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2 answers:
Answer:
Step-by-step explanation:
Given that a line segment BK is an angle bisector of triangle ABC.
When the line KM intersects BC such that BM=MK
we find an isosceles triangle BMK with two sides equal
Hence by isosceles triangles theorem, two angles opposite equal sides would be equal
i.e.
The isosceles triangle theorem states that If two sides of a triangle are congruent, then angles opposite those sides are congruent.
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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, -∞)
