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
\n" ); document.write( "\n" ); document.write( "1. f(x)=2x^2-x+7;g(x)=x-1 find (f-g)(x)\r
\n" ); document.write( "\n" ); document.write( "2. f(x)=x^2+3;g(x)=+4; find (fog)(-2)\r
\n" ); document.write( "\n" ); document.write( "3. if f(x)=2x-4, find f^-1(x)\r
\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
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Algebra.Com's Answer #108245 by stanbon(75887)\"\" \"About 
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
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\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
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\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
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\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
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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