The triangle must be isosceles, due to the perpendicular bisector. Therefore, the expression 20 - 15 can be used to yield an answer of B. 5.
Hope this helps!
In this question, a piece-wise function is asked to be graphed.
Piece-wise function:
A piece-wise function is a function that has different definitions, depending on the input.
In this question, the function has three different definitions:
When x is less than -2, the definition is:

When x is between -2 and 3, inclusive, the function is:

When x is greater than 3, the definition is:

The graphic is given by the image at the end here, with the closed circle indicating the inclusive on the intervals.
For another example of a piece-wise graphic, you can check brainly.com/question/24324639.
29. C 5ft
30. A 1yd 3in
31. D 2ft
32. B 48in
Answer:
irratrrational Numbers
whole
real
Step-by-step explanation: