Simplify, correct to three significant figures, (27.63)\(^2\) - (12.37)\(^2\)

Assessment: WAEC SSCE - General Mathematics - 2019 (Objective) Subject: General Mathematics

Question 1 Report

Simplify, correct to three significant figures, (27.63)\(^2\) - (12.37)\(^2\) 

Answer Details
We can start by squaring each of the numbers in the expression: (27.63)\(^2\) = 762.9869 (12.37)\(^2\) = 153.4369 Now we can subtract the two squares: 762.9869 - 153.4369 = 609.55 Rounding the result to three significant figures, we get: 609.55 = 610 So (27.63)\(^2\) - (12.37)\(^2\) = 610.

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