Question for Monday, November 10th, 2008
| If a @ b = 2(a + |b|), what is the value of 2 @ (-2 @ -1)? | ||
| A. | -8 | |
| B. | 4 | |
| C. | 0 | |
| D. | 4 | |
| E. | 8 | |
We first have to solve the quantity in parentheses: (-2 @ -1), or 2(-2 + |-1|).
Working that out we get 2(-2 + 1), or 2(-1), or -2.
Now we must solve 2 @ -2, or 2(2 + |-2|), or 2(2 + 2), or 2(4), or 8.
The answer is E.
source: proprofs.com
