document.write( "Question 1034654: I am stuck on 4 problems. If someone could explain these I would be very grateful.
\n" ); 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
\n" ); document.write( "\n" ); document.write( "2. Evaluate in fraction form without using a calculator: Log7 √7\r
\n" ); document.write( "\n" ); document.write( "3. Write this equation in its equivalent logarithmic form: 3√8 = 2\r
\n" ); document.write( "\n" ); document.write( "4. Find the domain of this logarithmic function: f(x)=In(x-2)2
\n" ); document.write( "

Algebra.Com's Answer #649300 by nerdybill(7384)\"\" \"About 
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( "
\n" );