Evaluate (frac{(3.2)^2 – (4.8)^2}{3.2 + 4.8})
-
A.
-0.08 -
B.
-1.60 -
C.
-10.24 -
D.
-12.80
Correct Answer: Option B
Explanation
(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
Evaluate (frac{(3.2)^2 – (4.8)^2}{3.2 + 4.8})
(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