document.write( "Question 30458: (8) Question:
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document.write( "How many solutions does this nonlinear system have?
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document.write( "2y=2x^2+4x+9
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document.write( "y=x^2+2x+3\r
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document.write( "(A) 0
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document.write( "(B) 1
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document.write( "(C) 2
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document.write( "(D) 3
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document.write( "(E) Infinite solutions\r
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document.write( "Thanks!
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document.write( "PLEASE NOTE THIS IS THE CORRECT QUESTION AND WRITTEN EXACTLY HOW IT IS FOUND IN MY WORK ~ \n" );
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Algebra.Com's Answer #17231 by Fermat(136)![]() ![]() You can put this solution on YOUR website! There are no solutions! \n" ); document.write( "Your two eqns are, \n" ); document.write( "2y=2x^2+4x+9 \n" ); document.write( "y=x^2+2x+3 \n" ); document.write( "Dividing the top eqn by 2, the system of eqns becomes, \n" ); document.write( "y=x^2+2x+4.5 \n" ); document.write( "y=x^2+2x+3 \n" ); document.write( "These are two \"parallel\" curves (parabolas). \n" ); document.write( "One parabola cuts the y-axis at y = 4.5. \n" ); document.write( "The other parabola cuts the y-axis at y = 3. \n" ); document.write( "The two parabolas are the same size/shape and will never intersect, hence no solutions. \n" ); document.write( " |