Question

Perform the following calculations and express the results to proper number of significant figures 144.3m square is added with the 2.54 and multiple by 8.4m​

Answer 1

{(144.3)^2+2.54}×8.4
=(20822.49+2.54)×8.4
=(20825.03)×8.4
=174930.252
Ans:-174930.252

Answer 2

165.6

Explanation:

144.3+(2.54*8.4)

144.3+21.336

165.636

165.6