document.write( "Question 147856: You have helped me a few times and I greatly appreciate all I can get, here is some more questions I am stuck on\r
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document.write( "1. f(x)=2x^2-x+7;g(x)=x-1 find (f-g)(x)\r
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document.write( "2. f(x)=x^2+3;g(x)=+4; find (fog)(-2)\r
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document.write( "3. if f(x)=2x-4, find f^-1(x)\r
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document.write( "4. using the compound interest formula A=P(1+r/n)^nt, find A when P=$1000, r=6%, t=5 years and n=4
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Algebra.Com's Answer #108245 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1. f(x)=2x^2-x+7;g(x)=x-1 find \n" ); document.write( "(f-g)(x) = f(x) - g(x = (2x^2 -x +7) - (x - 1) = 2x^2 -2x + 8 \n" ); document.write( "-------------------------------------- \n" ); document.write( " \n" ); document.write( "2. f(x)=x^2+3;g(x)=+4; find \n" ); document.write( "(fog)(-2) = f[g(-2)] = f[4] = 16+3 = 19 \n" ); document.write( "------------------------------------ \n" ); document.write( "3. if f(x)=2x-4, find f^-1(x) \n" ); document.write( "x = 2y - 4 \n" ); document.write( "2y = x+4 \n" ); document.write( "y = (1/2)x + 2 \n" ); document.write( "------------------------- \n" ); document.write( "4. using the compound interest formula A=P(1+r/n)^nt, find A when P=$1000, r=6%, t=5 years and n=4 \n" ); document.write( "A(5) = 1000(1 + 0.06/4)^(4*5) \n" ); document.write( "A(5) = 1000(1.015)^20 \n" ); document.write( "A(5) = 1000(1.346855007) \n" ); document.write( "A(5) = $1346.86 \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |