+0  
 
0
356
1
avatar+961 

The square of a is 74.1. What chould the original number have been? ( Round your answer two demimal places )

 Jul 7, 2015

Best Answer 

 #1
avatar+96171 
+5

a^2 = 74.1     take the square root of both sides

 

a   = √74.1   ≈ 8.61 rounded to two decimal places  {to be fair, "a" could have also been the negative of this, as well..} 

 

 

 Jul 7, 2015
 #1
avatar+96171 
+5
Best Answer

a^2 = 74.1     take the square root of both sides

 

a   = √74.1   ≈ 8.61 rounded to two decimal places  {to be fair, "a" could have also been the negative of this, as well..} 

 

 

CPhill Jul 7, 2015

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