Discussion
| 8. | Column A | | Column B |
| | .06 | |  |
| (A) | Column A is larger |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 11/28/2012 03:43
Couldn't (0.036)^(1/2) also have the negative root of -0.189, making the answer (D)?
Posted: 11/29/2012 01:51
Roma, no. The root of a real number is always a positive number. You are confusing the root operation with the solutions to the algebraic equation x^2 - .0036 = 0, which can be solved by factoring into (x+.189)(x-.189)=0