Evaluate \(\frac{(3.2)^2 - (4.8)^2}{3.2 + 4.8}\)
A
-0.08
B
-1.60
C
-10.24
D
-12.80
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
\(\frac{(3.2)^2 - (4.8)^2}{3.2 + 1.8} = \frac{(3.2 - 4.8)(3.2 + 4.8)}{(3.2 + 4.8)}\)
= 3.2 - 4.8
= -1.60
Source: Myschool Past Questions Archive (Record #36323)