Questions on Algebra: Logarithm answered by real tutors!

Algebra ->  Algebra  -> Logarithm Solvers, Trainers and Word Problems -> Questions on Algebra: Logarithm answered by real tutors!      Log On

 Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 45037: Find the exact solution to the equation 3^(x+5)=9^x. I have 5. Is this right? Thank you. Click here to see answer by Nate(3500)

 Question 45035: Find the number log subscript 5(1/5). I have 1. Is this correct? Thank you for your time. Click here to see answer by Nate(3500)

 Question 45116: Exponential and Logarithmic Functions. Compound Interest. If \$500 is deposited in an account paying 8.5% annual interest, compounded semiannually, how long will it take for ethe account to increase to \$800? Click here to see answer by stanbon(57224)
 Question 45116: Exponential and Logarithmic Functions. Compound Interest. If \$500 is deposited in an account paying 8.5% annual interest, compounded semiannually, how long will it take for ethe account to increase to \$800? Click here to see answer by venugopalramana(3286)

 Question 45114: Find each value of x. log2 8 = x Click here to see answer by stanbon(57224)

 Question 45117: Solve for x: log(x - 4) + log 2 = 1 Click here to see answer by stanbon(57224)

 Question 45133: I've been working on a problem but can't seem to find the solution to write as a single logarithm: 2 log 4 + log x - log 2. My fisrt instict/ step was to: rearrange the problem to make it more clearer to work and went from there. I'm missing a step somewhere, any guidance would be greatly appreciated. 2 log 4 + log x - log 2 log 4^2 + log x - log 2 log 16 - log 2 + log x ? log x = log 16 / log 2 ? x = 8 ? Click here to see answer by adamchapman(301)

 Question 45199: I need to evaluate log6 123. the six is a small 6at the bottom of the g. Click here to see answer by rapaljer(4667)

 Question 45238: Can you please help me with this problem? Solve the equation by isolating the natural logarithm and exponentiating both sides. Express the answer in terms of e. 6 + 6 ln x = 11 Thank You!! Click here to see answer by stanbon(57224)

 Question 45197: I need to evaluate log6 123. the six is a small 6at the bottom of the g. Click here to see answer by stanbon(57224)

 Question 45273: 1. Find the domain of the function f(x) = ln(x - 7). Click here to see answer by rapaljer(4667)

 Question 45390: Please explain the difference between a logarithm of a product and the product of logarithms and give examples of each. Click here to see answer by rapaljer(4667)

 Question 45274: Write as a single logarithm (DO NOT find approximations): 2 log 4 + log x - log 2. Click here to see answer by rapaljer(4667)

 Question 45397: I need to express log5 x-(2log5 y-log5 t) as a single logarithm with a coefficient of one. note: the log 5 is a small 5 at the bottom of the g. Click here to see answer by Nate(3500)

 Question 45396: I need to write log3 (3/xysquared divided by w) in expanded form note: Log3 is a small 3 at the bottom of the g, and I used the symbol / for the square root symbol. and the three in front of my square root symbol is in the index. So it would be the cubed root of xy with the y being squared. Click here to see answer by Nate(3500)

 Question 45409: I do not understand how to do these problems could you explain the problem so I can understand better. Assume the x,y,z, and b are positive numbers and b =/ 1. Use the propertie og logarithms to write each expression in the terms of thelogarithms x, y, and z. 51) logx^3y^2 Click here to see answer by stanbon(57224)

 Question 45455: Sove the logarithmic equation, could you explain to me how to do this? log x + log (x+9) = 1 Click here to see answer by stanbon(57224)

 Question 45454: Could someone explain to me the difference between a logarithm of a product and the product of logarithms and give examples of each. Click here to see answer by stanbon(57224)

 Question 45492: I'm not sure how to set up this problem. The number before the x in the exponent expression on the #3 confuses me. The problem is 3^2x=4^x I have set the problem up as 2xLog3=xlog4. The next step I believe is 2xLog3-xLog4=0, Factor out x. X(2log3-log4)=0. I don't know if this is right or what the next step would be. without the 2 in front of log 3 I would divide out the expression in the parenthesis to get x=0. Any help would be greatly appreciated thank you. Tamara Click here to see answer by Nate(3500)

 Question 46078: Write the expression log subscript a(y+5)+2log subscript a(x+1) as one logarithm. Click here to see answer by Nate(3500)

 Question 46077: Given that log subscript a(x)=3.58 and log subscript a(y)=4.79, find log subscript a(y/x). Thanks. Click here to see answer by Nate(3500)

 Question 46107: Hi again, I could use some help with this problem: Solve the logarithmic equation: log (x+3) + log x = 1 Thanks, Louis Click here to see answer by Nate(3500)

 Question 46192: Sketch the graph of the function and identify the vertical asymptote: F(X)= ln(x-3) Click here to see answer by Nate(3500)

 Question 46225: Can someone help me with logarithms?!?! I need to solve the equation (6 + 6 lnx = 11) by isolating the natural logarithm and exponentiating both sides, expressing the answer in terms of e. Any explanation would be extremely helpful as I am not even sure where to start!! Thank You!! Click here to see answer by Nate(3500)

 Question 46227: Express as a single natural log: 21nx - 51ny + 31nz Click here to see answer by venugopalramana(3286)

 Question 46917: The amount A in an account after t years of an initial principle P invested at an annual rate r compounded continuously is given by A=Pe^(rt) where r is expressed as a decimal. What is the amount in the account if \$500 is invested for 10 years at the annual rate of 5% compounded continuously? Click here to see answer by stanbon(57224)

 Question 46943: Can someone help me please??... the question asks to solve the eqaution for x log(bottom side 3) 1/81 = x can someone show me how to do this? thanks!! Click here to see answer by fractalier(2101)

 Question 46871: solve expressing answer in terms of e 4 + 6 ln x = 16 Click here to see answer by fractalier(2101)

 Question 46873: Write the formula for the general (nth term) of the following arithmetic sequence. (Do not use a recursive formula.) Then use your formula to find the 17th term. 3, 9, 15, 21, 27, 33, … Click here to see answer by fractalier(2101)

 Question 46998: log 8- logx = 2 log 7x=2 x=2/7 Is this right? Thank you, Michelle Click here to see answer by atif.muhammad(135)