Simplify, correct to three significant figures, (27.63)\(^2\) - (12.37)\(^2\)
A
614
B
612
C
611
D
610
Verified Correct Answer: D.
Step-by-Step Mathematical Solution
(27.63)\(^2\) - (12.37)\(^2\)
= (27.63 + 12.37)(27.63 - 12.37)
= 40 x 15.26
= 610
Source: Myschool Past Questions Archive (Record #57100)