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Use square roots to solve the following equations round to the nearest hundredth if necessary

3y2+51=918
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1 Answer

3y2 + 51 = 918
 
Subtract 51 from both sides:
 
3y2 = 918 - 51 = 867
 
Divide both sides by 3:
 
y2 = 867/3 = 289
 
Take the square root of both sides:
 
√y2 = √289
 
y = ±17
 

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