# Questions on Algebra: Logarithm answered by real tutors!

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 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 201583: Sorry I submitted my problem wrong, the question is ln(4x)=ln(x+5) can you help with this problem, please? Click here to see answer by jim_thompson5910(28699)

 Question 201883: I am having a hard time solving this problem. Need some assistance. Problem: The acceleration a(in m/s2power) of an object is a=(t+4)-1power. What is the velocity for t = 4s, if the initial velocity is zero. Thank you, Jimmy Click here to see answer by vleith(2825)

 Question 201673: Use logarithmic properties to expand the expression, ln(e^3y/x^2), as much as possible. Click here to see answer by Earlsdon(6294)

 Question 201485: Use the compound interest models A=P(1+r/n)^nt and A=Pe^rt to answer this question. Suppose you want to invest \$5000. What investment yields the greater return over 5 years: 4.5% compounded quarterly or 4% compounded continuously? How much more, to the nearest dollar, is yielded by the better investment? Click here to see answer by scott8148(6628)

 Question 202241: Which one of the following is true? (1) log(7+3)=log7+log3 (2) (log10)^3=3log10 (3) ln(7e^10)=10+ln7 ? HELP. Click here to see answer by Theo(3504)

 Question 202362: If Log N = 4 then Log10N is _________ Click here to see answer by vleith(2825)

 Question 202615: Q. Find the value of the expression + My attempt (I would be only writing a select few steps, missing the unnececarry ones) = = = = = I'm confused as to how to procede now! btw. The answer is 1/6......I just don't know how to get there! Click here to see answer by jim_thompson5910(28699)

 Question 202660: Hi, could you help me to solve these equations? 2^(2x+1) - 10.2^x=-12 log(4,[log(4,(log4,x))])=0 1/3.log(20,2x-1)=log(20,11)-2.log(20,(2x-1)^(1/3))+log(5,(log7,7)) Click here to see answer by jim_thompson5910(28699)

 Question 202664: could sombody help me to solve it? 1/3.log(20,2x-1)=log(20,11)-2.log(20,(2x-1)^(1/3))+log(5,(log7,7)) Click here to see answer by jim_thompson5910(28699)

 Question 202715: What does it mean and how can I solve it in a equation? (log(2,x))^2 Click here to see answer by jsmallt9(3296)

 Question 198395: Find the pH of a substance of your choice that is alkaline (basic). Using this pH, show how to find the hydrogen ion concentration, [H+], of the substance using the formula. Discuss the meaning of pH and [H+], the pH scale and why your chosen substance is alkaline. Use scientific notation or enough decimal places so that your answer has at least 3 place values. Click here to see answer by jsmallt9(3296)

 Question 202608: Question: Find the domain of f(x)=log subscript2(6-x). (1)(2,6) (2)(-infinite, 6) (3) (6,infinite) (4) (-6, infinite) which one? thanks for your help. Click here to see answer by jsmallt9(3296)

 Question 202843: Given Log(a)=0.0441 and log(b)=0.7964; find Log[sqrt a/b] (find log square root of (a) over (b). Click here to see answer by jim_thompson5910(28699)

 Question 202848: Write as a single Logarithm: [ln(2) + ln(3) + ln(5)]- ln(7) Click here to see answer by jsmallt9(3296)

 Question 202904: Write the expression as a single logarithm: 2lnx-3lny. Would it be (1) ln(2x/3y) (2)ln(x^2/y^3) (3)6ln(xy) (4) ln(x^2-y^3)? Click here to see answer by solver91311(17070)

 Question 202905: Using the properties of logarithms which single term does not contain a logarithm: e^ln(3x^5). (1)3x^5, (2)x^15 (3) x^8 or (4) x^5/3? Click here to see answer by jsmallt9(3296)