document.write( "Question 1034654: I am stuck on 4 problems. If someone could explain these I would be very grateful.
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document.write( "1. Express ex=5.7 in terms of natural logarithms or common logarithms to a decimal approximation, of two decimal places, for the solution.\r
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document.write( "2. Evaluate in fraction form without using a calculator: Log7 √7\r
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document.write( "3. Write this equation in its equivalent logarithmic form: 3√8 = 2\r
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document.write( "4. Find the domain of this logarithmic function: f(x)=In(x-2)2 \n" );
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Algebra.Com's Answer #649300 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! 1. Express ex=5.7 in terms of natural logarithms or common logarithms to a decimal approximation, of two decimal places, for the solution. \n" ); document.write( "e^x=5.7 \n" ); document.write( "take ln of both sides to give: \n" ); document.write( "ln(e^x)=ln(5.7) \n" ); document.write( "x = ln(5.7) \n" ); document.write( "plug into calculator to get: \n" ); document.write( "x = 1.74 (answer) \n" ); document.write( ". \n" ); document.write( "2. Evaluate in fraction form without using a calculator: Log7 √7 \n" ); document.write( "Log7(√7) \n" ); document.write( "write √7 in exponent form \n" ); document.write( "Log7(7^(1/2)) \n" ); document.write( "1/2 (answer) \n" ); document.write( ". \n" ); document.write( "3. Write this equation in its equivalent logarithmic form: 3√8 = 2 \n" ); document.write( "I'm assuming the left side is the \"cube root of 8\" \n" ); document.write( "3√8 = 2 \n" ); document.write( "8^(1/3) = 2 \n" ); document.write( "1/3 = Log8(2) (that's log base 8 on the right side) \n" ); document.write( ". \n" ); document.write( "4. Find the domain of this logarithmic function: f(x)=In(x-2)2 \n" ); document.write( "\"domain\" defines all possible values of that you can use for f(x) \n" ); document.write( "since we cannot take the ln of zero or a negative number \n" ); document.write( "Domain is: \n" ); document.write( "x >= 0 (that is x must be greater than or equal to zero)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |