Which expression is rational?
Select one:
A. The infinite non-repeating decimal four point one two one two two one two two two dot dot dot
B. square root of the quantity five squared minus four squared
C. two plus square root of the quantity seven squared minus twelve
D. The infinite non-repeating decimal one point one nine three seven four four five zero two dot dot dot

Question

Which expression is rational?
Select one:
A. The infinite non-repeating decimal four point one two one two two one two two two dot dot dot
B. square root of the quantity five squared minus four squared
C. two plus square root of the quantity seven squared minus twelve
D. The infinite non-repeating decimal one point one nine three seven four four five zero two dot dot dot

queenie · Answer

B.
sqrt (5^2 - 4^2)
sqrt (25 - 16)
sqrt 9
3...this is rational because it can be written as a fraction 3/1