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-2*3.06+(7.6*6y2)=240. What is the value of y2? (Round it to 2 decimal points)

 Jul 7, 2017
 #1
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-2*3.06+(7.6*6y^2)=240     simplify

 

-6.12 + 45.6 y^2  = 240     add 6.12 to both sides

 

45.6 y^2  =  246.12          divide both sides by  45.6

 

y^2  =  246.12 /  45.6  ≈   5.40

 

 

cool cool cool

 Jul 7, 2017

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