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Solve 7y^2+ 21 = 77, where Y is a real number. Round your answer to the nearest hundredth.​
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Solve 7y^2+ 21 = 77, where Y is a real number. Round your answer to the nearest hundredth.​

User Jarchuleta
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When you do the algebra you get square root of 8. Put that into calculator and get 2.828
User Sandeep Amarnath
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