Final answer:
Out of the given numbers 50.1111, -50/2 (-25), -50.1, and 7.071067, the number 7.071067 does not belong with the other three because it's a positive decimal that resembles a mathematical constant, unlike the others which are just decimals or an integer.
Step-by-step explanation:
To identify the number that does not belong with the other three, we analyse the numbers given:
- a) 50.1111
- b) -50/2
- c) -50.1
- d) 7.071067
First, let's simplify option b). -50/2 simplifies to -25. Now, looking at the numbers:
- a) 50.1111 is a positive decimal number.
- b) -25 is a negative integer.
- c) -50.1 is a negative decimal number.
- d) 7.071067 is a positive decimal that looks like an approximation of the square root of 50.
Therefore, the number that does not belong with the other three is 7.071067.