# Questions on Algebra: Logarithm answered by real tutors!

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 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 433968: Express as a single logarithm and, if possible, simplify. (((logb 3x + 6(logb x - logb y) )))) Click here to see answer by stanbon(57307)

 Question 434012: Find: a.) F o G b.) G o F c.) F o F d.) G o G also find the domain of each composite function 1.) F(x) = 1/x+3 g(x) -2/x 2.) F(x) = Square root of x-2 g(x) = 1-2x Click here to see answer by stanbon(57307)

 Question 434376: Express 9 to the (1/2) power=3 in logarithmic form. Click here to see answer by robertb(4012)

 Question 434446: how do you do the problem e^k-1 = 4? Click here to see answer by tinbar(128)
 Question 434446: how do you do the problem e^k-1 = 4? Click here to see answer by Alan3354(30993)

 Question 434452: how do you solve the problem log w + log(3w-13) = 1? Click here to see answer by stanbon(57307)

 Question 434450: how do you solve the problem ln (y+2) = ln (y-7) + ln 4? Click here to see answer by MathLover1(6627)

 Question 434193: Please help me solve this eqaution: Express as a single logarithm and, if possible, simplify 1/4 log base a of x + 3 log base a of y - 2 log base a of z Click here to see answer by ankor@dixie-net.com(15649)

 Question 434448: how do you solve the problem 2(e^x +1) = 10? Click here to see answer by jsmallt9(3296)

 Question 434723: what is the unknown of log p 216=3 Click here to see answer by MathLover1(6627)

 Question 434727: what is the value of log8 4 Click here to see answer by Edwin McCravy(8908)

 Question 434760: Express as a single logarithm log 10 + log 2 Click here to see answer by josmiceli(9671)

 Question 434756: what is the unknown of log4 f + log4 16=6 Click here to see answer by nerdybill(6958)

 Question 434777: what is the unknown of 9^x-5 = 81^x-7 Click here to see answer by nerdybill(6958)

 Question 434974: solve using logarithm. what is the unknown of 25^c=20 Click here to see answer by stanbon(57307)

 Question 434978: what is the unknown of log1/2 16 + log1/3 9 = b Click here to see answer by stanbon(57307)

 Question 435053: I need help to solve this equation for x. This is what I've tried so far. Is this correct/am I on the right track? 2*log[5(2x+3)]=2 2*log(10x+15)=2 Click here to see answer by Alan3354(30993)

 Question 435047: I need help rewriting the expressions as a single logarithm. 1) 2lnx + 4lny 2) 3logx^2 - 7logy 3) (log_4)x - (log_4)9 + (1/2)(log_4)100 ^ = superscript _ = subscript Click here to see answer by Gogonati(809)

 Question 435229: what is the unknown of log5 v + log1/3 9 + log 9 81 = -4 Click here to see answer by stanbon(57307)

 Question 435231: what is the unknown of log6 q= -4 Click here to see answer by stanbon(57307)

 Question 435244: Express as a single logarithm log 11 - log 6 + 1/3log 8 + 1/3log 729 Click here to see answer by josmiceli(9671)

 Question 435243: Express as a single logarithm log 8 + 6 log 3 Click here to see answer by josmiceli(9671)

 Question 435302: Use Properties of logarithms to write the expression as a logarithm of a single expression. log 6 + log 5x Click here to see answer by ewatrrr(10682)

 Question 435307: There are initially 4000 bacteria per milliliter in a sample, and after 1 hour their concentration increases to 6000 bacteria per milliliter. Assume exponential growth. a)How many bacteria are there after 2.5 hours? b)After how long are there 8500 bacteria per milliliter? Click here to see answer by stanbon(57307)
 Question 435307: There are initially 4000 bacteria per milliliter in a sample, and after 1 hour their concentration increases to 6000 bacteria per milliliter. Assume exponential growth. a)How many bacteria are there after 2.5 hours? b)After how long are there 8500 bacteria per milliliter? Click here to see answer by htmentor(789)

 Question 435306: Suppose that b is the y-intercept on the graph of a one-to-one function f. What is the x-intercept on the graph of f^-1? Explain why. Click here to see answer by poopstainonmath(4)

 Question 435337: log base 6 of 1. what does it equal? Click here to see answer by nerdybill(6958)

 Question 435610: using logarithms solve the equation 35.2(3.06)^x = 2579.6 Click here to see answer by nerdybill(6958)

 Question 435675: Approximate the logarithem to four decimal places log7 1/2 Click here to see answer by Alan3354(30993)

 Question 435608: write the given expression as a single logarithm 7log(y+1)+3logz-1/2logx Click here to see answer by Alan3354(30993)