Let's solve Question 3 and Question 4 step by step.

Question 3:

We are given:

• $XY = 47$
• $YZ = 4$
• $Y$ lies on $XZ$, meaning the total segment $XZ$ is composed of $XY + YZ$.

To find $XZ$: $XZ = XY + YZ = 47 + 4 = 51$ None of the provided options includes $51$, so the correct answer is: "None of these are correct."

Question 4:

We need to determine the length of segment $SR$ from the number line.

From the figure:

• $S$ is at $-6$
• $R$ is at $-5$

The length of $SR$ is the absolute difference between the two points: $SR = |R - S| = |-5 - (-6)| = |-5 + 6| = |1| = 1$

The correct answer is: 1

Summary of Answers:

• Question 3: None of these are correct.
• Question 4: 1.

Do you need more details for any step? Let me know!

Related Questions:

1. How do you calculate segment lengths using a number line?
2. What is the segment addition postulate, and how is it applied?
3. How can you verify the midpoint of a segment?
4. How do you find the length of overlapping segments?
5. What are the properties of collinear points on a line segment?

Tip: Always check if a given segment is composed of smaller parts to use the addition postulate.