Please post the COMPLETE problem, ALONG WITH THE ANSWER CHOICES.
The value of (10�-10²)/(10�-10³) is closest to which of the following?
A. 1
B. 10
C. 10²
D. 10³
E. 10�
In the expression above, the values in blue are HUGE, while the values in red are RELATIVELY SMALL.
Since the question stems asks for an APPROXIMATION -- and the answer choices are spread out -- we can safely ignore the values in red:
(
10�-
10²)/(
10�-
10³) ≈ 10�/10� = 10.
The correct answer is
B.
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