Posted by **Nicki** on Thursday, October 28, 2010 at 7:33pm.

Which of the following is NOT a real number? (Please explain why!)

(1) -1 (I already ruled out this answers because integers can be real numbers)

(2) square root of 3

(3)square root of -3

(4)0.101001000100001...

- Math -
**MathMate**, Thursday, October 28, 2010 at 10:18pm
Real numbers include rational, irrational, integers, and natural numbers. Real numbers form a subset of complex numbers. So when a number is not real, it is usually complex.

Can you spot a complex number from the list?

## Answer This Question

## Related Questions

- 7th grade math Ms.Sue please - 1. Which of these numbers can be classified as ...
- Math Help!!! - 1. Which of these numbers can be classified as both real and ...
- Math - i^6 = (i^2)^3 = (-1)^3 = -1 The square, not the square root of -1 is 1...
- Math ~CHECK MY ANSWERS~ - 1) Which of these is a rational number? a. Pi b. ...
- Pre- Algebra - State if each number is Rational,Irrational,or not a real number...
- Math simplifying mixed radicals - Please help me simplify these following mixed ...
- Math ~CHECK MY ANSWER~ - 1) Which of these is a rational number? a. Pi b. Square...
- math - 1) Which of these is a rational number? a. Pi b. Square root 3 ****** c. ...
- algebra - could someone please check these roblems for me and if they are not ...
- Math PLEASE HELP ASAP - -PLEASE INCLUDE SOLUTIONS AND EXPLAIN HOW YOU DID IT ...

More Related Questions