# Questions on Algebra: Logarithm answered by real tutors!

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 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 630539: I can't find any examples of logarithmic functions that have another number before the logarithm. I have to find the domain, x-intercept, and y-intercept for the following problem: y= So far I have domain: x>17 y-intercept: (0,-16) and I can't find x-intercept. Are these right, and how do I work out the x-intercept? Thanks :) Click here to see answer by ewatrrr(10682)
 Question 630539: I can't find any examples of logarithmic functions that have another number before the logarithm. I have to find the domain, x-intercept, and y-intercept for the following problem: y= So far I have domain: x>17 y-intercept: (0,-16) and I can't find x-intercept. Are these right, and how do I work out the x-intercept? Thanks :) Click here to see answer by Edwin McCravy(8999)

 Question 630639: How long does it take for \$1000 to double if it is invested at 3% interest compounded monthly? Click here to see answer by nerdybill(7011)

 Question 630931: Write the expression as a single logarithm with a coefficient of 1. Assume all variable expressions represent positive real numbers. log(x + 1) + 4 log x Click here to see answer by stanbon(57984)

 Question 630964: Write the expression in terms of common logarithms, and then give a calculator approximation (correct to four decimal places) log8 (70) Click here to see answer by Alan3354(31538)

 Question 631064: how to express log1024 in terms of A, B and C, letting log2=a, log3=b and log 5=c? Click here to see answer by stanbon(57984)

 Question 631073: Letting log2=a, log3=b and log5=c, how do i express: 1. log2/3 in terms of a, b, and c 2. log5/3 in terms of a, b and c 3. log8/3........... in terms of A B and C? Click here to see answer by jsmallt9(3296)

 Question 631133: how do i determine the value of these expreesiomh without using a calculator: 1. logbase7 7^(48) 2. logbase(11) (cube root of 11)^7 3. log0.0000001 4. 10^log3.4 Click here to see answer by ewatrrr(10682)

 Question 631619: How do I write this as a single logarithm? 2(log x - log y) I put 2log x/y But I'm not sure Click here to see answer by jim_thompson5910(28717)

 Question 631667: Solve the equation. 1) 4 ^x = 9 ^(1 - x) Click here to see answer by nerdybill(7011)

 Question 632113: what is log base x of 7= -2 Click here to see answer by stanbon(57984)

 Question 632238: if log 2=p and log 3=q express the following logarithms in terms of p and q 1. log b 108= Click here to see answer by Tatiana_Stebko(1326)
 Question 632238: if log 2=p and log 3=q express the following logarithms in terms of p and q 1. log b 108= Click here to see answer by lwsshak3(6770)

 Question 632337: how do i solve 6log(4)0.5 without the use of a calculator Click here to see answer by stanbon(57984)

 Question 632394: The points A (1,5) B (4, -1) & C (-2, -4) forms triangle ABC. Prove that the triangle is right angle and find its area Click here to see answer by reviewermath(605)

 Question 632448: Write the expression in terms of common logarithms, and then give a calculator approximation. log9(77) Click here to see answer by jim_thompson5910(28717)

 Question 632453: Write the expression in terms of common logarithms, and then give a calculator approximation log8 (74)= Click here to see answer by Alan3354(31538)

 Question 632486: Form a polynomial f(x) with real coefficients having the given degree and zeros. Expand into standard form Degree 3: zeros: 1 + i and -8 Click here to see answer by Alan3354(31538)

 Question 632485: The function f is one-to-one. Find its inverse. State the domain and range of both the function and the inverse function. 13) f(x) = sqrt (x + 4) - 5. f-1(x) = Click here to see answer by Tatiana_Stebko(1326)

 Question 632961: Find the number of decibels for the power of the sound. Round to the nearest decibel. A rock concert, 5.37 10^-6 watts/cm2 Click here to see answer by Theo(3504)

 Question 633354: Greetings I am having trouble with a log problem to solve for X in logx32=5/3 I thought I must change into exponential form and get x^5/3 =2^5 and then go into log form to get 3/5logx=5log2 and then I am lost. please help? Click here to see answer by jsmallt9(3296)

 Question 633392: Hi, pleas help me solve this problem: Use logarithms to solve the equation symbolically ln x + ln x^2 = 5 Click here to see answer by Alan3354(31538)

 Question 633478: logbase3(logbaseX(logbase416))=-1 I thought perhaps I must simply just add (which multiplies) so i took it out of the brackets. I was getting logbase3 +logbaseX +logbase4 4^2 <-fours cancel out right? Then I got logbase3 +logbase X +2=-1 then log base3 +log base X=-3 Then I am lost. Please help? Click here to see answer by stanbon(57984)

 Question 633359: How do I write the following expression as a single logarithm? thank you Click here to see answer by KMST(1936)

 Question 633487: Im having difficulty with solving the following logarithim for X 6^(2log base6 X + log base6 X) = 125 I thought the log base of 6 would cancel out and I would get x^2 + X =5^3 but what do I do with that 6? add it to get X^2 + X +6 =125? please help thank you Click here to see answer by lwsshak3(6770)

 Question 633549: write log subscript 3 (5x sqrt y divided by z^3) as a sum, difference, or multiple of single logarithms log[3](5x√(y))/(z^(3)) Click here to see answer by ewatrrr(10682)