Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 421639: log base8 2x^2 + log base8 4 = 5
Click here to see answer by jsmallt9(3296)

Question 421639: log base8 2x^2 + log base8 4 = 5
Click here to see answer by richard1234(5390)

Question 421653: Express loga36 + ½ loga256 - 2 loga48 as a single logarithm
.

Click here to see answer by jsmallt9(3296)

Question 421672: How long will it take for prices in the economy to double at a 8% annual inflation rate
Click here to see answer by rfer(12678)

Question 421709: log3^X=4
Click here to see answer by Alan3354(30993)

Question 421794: e^x=0.25 solve the equation
Click here to see answer by MichelleL(6)

Question 421794: e^x=0.25 solve the equation
Click here to see answer by zxvin92xz(1)

Question 421866: A rectangular block has a square base. The length of each side of the base is (√3 - √2)m and volume of the block is (4√2 - 3√3) cubic metre. Find the height of the block in the form (a√2 + b√3) where a and b are constants.
*√ = square root or under root :)
Click here to see answer by edjones(7569)

Question 422293: can i know how about this question:

I try many way but I can't balance it ><
Click here to see answer by jsmallt9(3296)

Question 422322: 3/2 log base 2 (4) - 1/2 log base 2 (x) = 3
Click here to see answer by Gogonati(809)

Question 422224: i need this written as a single logarithm: "5logbx - 4logby" the b's are underscored
Click here to see answer by ewatrrr(10682)

Question 422460: find the solution of the exponential equation.
write the answer using natural logarithms.
8 ^ 3x-6 = 2 ^ 4x-5
?
Click here to see answer by solver91311(16897)

Question 422571: okay, so i have no idea how to do this. the question is:
(1/2log base 5 of 16 -3log base 5 of X)+4log base 5 of Y -5(log base 5 of X squared -3log base 5 of X squared Y)
I think I have the next part right, but I have no clue.
[1/2(log16/log5)-3(logX/log5)]+4(logY/log5)-5[(logXsquared/log5)-3(logXsquaredY/log5)]
Sorry, its hard to type subscripts, etc.
Click here to see answer by jsmallt9(3296)

Question 422632:
I have no idea how to simplify this :( please help mee.
Click here to see answer by jsmallt9(3296)

Question 422589: Evaluate logarithms:
log[8](1/8)
log[8](8)
Click here to see answer by jsmallt9(3296)

Question 422754: Express the following as the logarithm of a single quantity.
a)log (x + 3) − 2 ℓog x + 1/3 log y + log w
b)2 − 3 log4 x − 1/2 log4 (t^2 −1) − log4 t
c)ln 5 + 2 ln x − 2/3 ln (3 − w) − 4 ln y + ln (2y − 3)
d)1 + log 2 − 3log (5x +1) + 1/4 log x − 5 log t − log 3

Click here to see answer by Gogonati(809)

Question 422921: how do i use the product property to find log 24
Click here to see answer by htmentor(789)

Question 423010: I need your help with this problem! I hope I have explain the problem so that it is understandable.
Solve.
log 6(the 6 is lower than log) (4x-3)=2
What is the solution set?
(Type an integer or a fraction.)
Click here to see answer by jim_thompson5910(28598)

Question 423014: Please help me out! I'm going to explain the problem using mathematical expression the best I could.
Use natural logarithms to solve the equation.
e -0.413t=5 (The -0.413t is up higher than the rest of the problem.)
The solution set is
(Simplify your answer. Type an integer or a decimal rounded to the nearest thousandth.)
Click here to see answer by jim_thompson5910(28598)

Question 423016: Please help me solve this problem!
Use a calculator to find the natural logarithm, base e.
ln 82.98
ln 82.98=
(Round to four decimal places as needed.)
Click here to see answer by solver91311(16897)

Question 423152: Hey hows it goin I ran into a little issue with log's I was wondering if you could help me solve this one. The base of the log's are a understood 10.
log4x=log5+log(x-4)
Click here to see answer by jim_thompson5910(28598)

Question 422132: Solve for x.
log (base 2)[x^2 + 5] = log(base 2)6x
Click here to see answer by lwsshak3(6527)

Question 422462: The population of India is 1.17 billion people and is expected to double in 44 years. The population of China is 1.34 billion people and is expected to double in 67 years. If the trends continue, when will the population of India be the same as China's?
Click here to see answer by lwsshak3(6527)

Question 422131: Can you step by step solve for x?
log (base 6) 1/216 = x
Click here to see answer by lwsshak3(6527)

Question 420525: can you please show me step by step of 3/2log[2]4-1/2log[2]x=3
Click here to see answer by lwsshak3(6527)

Question 422459: 2 log4 (x) +3 log 8 (x)+10
Click here to see answer by jsmallt9(3296)

Question 422359: log315q
Click here to see answer by jsmallt9(3296)

Question 423397: given log3=x and log5=y express log √(3/5)in terms of x and y
Click here to see answer by Theo(3472)

Question 423530: ln( x+ 6) = ln(x -6)
Click here to see answer by jim_thompson5910(28598)

Question 423727: log[7](d+5)^9
Click here to see answer by stanbon(57424)

Question 423745: solve this equation:
log base 6 (A squared + 2) + log base 6 (2) = 2
Click here to see answer by Adrish(44)

Question 423874: Express as a simple logarithm and simplify, if possible.
1
- log_b x+2log_b y-5log_b x=
2
*note, the b is all the small exponent in the bottom and the rest are not
Click here to see answer by Alan3354(30993)

Question 423875: Express as a single logarithm, and if possible simplify.
log(x^2+8x+15)-log(x^2-25)=

Click here to see answer by MathLover1(6649)

Question 423933: Solve this equation exactly for x (ok to leave in ln or log form).
log(x)+log(2x)=2
Click here to see answer by linht117(37)

Question 423933: Solve this equation exactly for x (ok to leave in ln or log form).
log(x)+log(2x)=2
Click here to see answer by MathLover1(6649)

Question 423961: WHAT IS Log4-Log10

Click here to see answer by Alan3354(30993)

Question 423639: how do you type log base 2 ^39 into a calculator?
Click here to see answer by jsmallt9(3296)

Question 423993: 3+log2(x-3)=log2 4x
Click here to see answer by stanbon(57424)

Question 423765: =3x
Click here to see answer by jsmallt9(3296)

Question 423619: Solve for y
log10 y - log10 (2-y) = 0
Click here to see answer by jsmallt9(3296)

Question 423578: Please help me solve this equation: log(2)(-)2
Click here to see answer by jsmallt9(3296)

Question 423603: What is the exponential equivalent to: y= ln2-lnx+3ln^3?
Click here to see answer by jsmallt9(3296)

Question 423872: Express in terms of logarithms without exponents.
log_c(4 square root m^12 n^8, which m and n is over (or divided by) c^7
What is the equivalent sum or difference of logarithms?
Click here to see answer by jsmallt9(3296)

Question 424005: could you use the change of base formula to express a logarithm in terms of natural logarithms?please explain. thanx!
Click here to see answer by robertb(4012)

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