Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 581652: Using the exponential correlation, how do I solve for x. Round to three decimal places.
1)log(4x+10)=3
2)1/2 log6 16x +5=8
3)In(x+4)=-2
Click here to see answer by lwsshak3(6765)

Question 581217: Using logarithm properties condense the following:
2[lnx-ln(x+1)-ln(x-1)]
Click here to see answer by lwsshak3(6765)

Question 581755: I've forgotten how to solve simple logorithims.. haha
3. Find all real solutions to the following:
a) log2(x 􀀀 2) + log2(x + 1) = log2 10
Click here to see answer by josmiceli(9819)

Question 581756: 3. Find all real solutions to the following:
a) log2(x - 2) + log2(x + 1) = log2 10
Click here to see answer by nerdybill(7011)

Question 582279: 4^x=e^ax need to solve for a, your help is much appreciated,all working please, thanks.
Click here to see answer by jim_thompson5910(28717)

Question 582329: How do you condense log base 4 of 3+ 3 log base 4 of 2
Click here to see answer by scott8148(6628)

Question 582406: how we will find that ph=-log[h+] if ph=7
Click here to see answer by Earlsdon(6294)

Question 582865: Write the expression as a sum and/or difference of logarithms. Express powers as factors. I'm lost in this problem, can anyone help?
ln [ ( x - 4 )^2 / x^2 - 1 ]^2/3 x>4
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Question 582866: log_6(3600)=5x
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Question 582495: Solve the logarithmic equation algebraically. Approximate the result to three decimal places. (If there is no solution, enter NO SOLUTION.)
ln x + ln(x + 2) = 1
Click here to see answer by lwsshak3(6765)

Question 582927: If log2=0.3010 then what is log5?
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Question 583204: Write the expression as a single logarithm or single natural logarithm?
1)1/3 log4 27-(2log4 6- 1/2 log4 81)
2)log3 4- log3 2)
3)2ln 8-ln 3+ln x
4)ln a-2ln b+ 1/2 ln c

Click here to see answer by solver91311(17077)

Question 583440: what does x equal when (2/5)^x=7?
Click here to see answer by nerdybill(7011)

Question 583455: what is the inverse of f(x)=5^(.8x)?
Click here to see answer by stanbon(57984)

Question 583478: 1/2(log6 + log 3 - 3log2) expressed as a single logarithm and evaluated.
Click here to see answer by lwsshak3(6765)

Question 583476: What is x when 12*(4^(4x-2))=35
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Question 583860: How do you simplify: log100^4x
Click here to see answer by Alan3354(31538)

Question 584061: log(x-2)+log(x+2)-.5 log(x^2+4) how to rewrite this logarithm in single form?
Click here to see answer by solver91311(17077)

Question 584061: log(x-2)+log(x+2)-.5 log(x^2+4) how to rewrite this logarithm in single form?
Click here to see answer by josmiceli(9819)

Question 584138: Evaluate without using logarithm tables: Log81(1/27).
Click here to see answer by lwsshak3(6765)

Question 584131: I'm so confused, is there anyone that can help.
Solve: 5^2x-5∙5^x+6=0
Click here to see answer by lwsshak3(6765)

Question 584066: .5[ln(x-4)+5ln(x^2+4)] in single logarithm form?
Click here to see answer by lwsshak3(6765)

Question 584450: log(6)x+log(6)(x+16)=2
I dont know how to solve this, and im supposed to check for extraneous solutions
Click here to see answer by scott8148(6628)

Question 584722: find the value(s) of x if 2log3x = log3 (x+6)
Click here to see answer by Schaman_Dempster(26)

Question 584718: Solve 4^x = 0.5
Click here to see answer by Schaman_Dempster(26)

Question 584741: how to get the solution of this equation. 2^2x+2^x-1=0
Click here to see answer by Theo(3504)

Question 584768: what is the answer to log 3z equal 2 ?
what is the answer to ln x equal 2 ?
whats the answer to 3 ln 5x equal 10 ?
whats the answer to ln square root x-8 equal 5 ?
Click here to see answer by nerdybill(7011)

Question 584826: Solve 2^6x+5=31 I need to know the step by step instructions as everything I do seems to be wrong. I need help on this ASAP. Thanks This need to go to 4 decimal places
Click here to see answer by richwmiller(9144)

Question 584888: Evaluate the expression.
log6 square root 216
Click here to see answer by lwsshak3(6765)

Question 584720: change ln48 to base 10 and hence evaluate.
Click here to see answer by lwsshak3(6765)

Question 585077: lnx-3ln3=3
ln3x=6
lne^2/2
ln(2x-1)=0
I just don't understand how to work these out. I'd appreciate you help.
Click here to see answer by Alan3354(31538)

Question 585147: 2=(1+x)^7, find X
Click here to see answer by Alan3354(31538)

Question 585290: How to find value of log(0.130)/(0.0001)^2
Click here to see answer by lwsshak3(6765)

Question 585261: (Solving Natural Logarithms to solve Exponential Equations)Give an exact answer and then an answer rounded to the nearest thousandth.
Problem:
3^x-1=4^2x+3
Click here to see answer by nerdybill(7011)

Question 585346: What properties do you need to use to write expression as a single logarithm?
base is 6.
log6 16- log6 4
Click here to see answer by Earlsdon(6294)

Question 585350: How do you expand the logarithm?
base is 7.
log7 23/4
Click here to see answer by Earlsdon(6294)

Question 585342: how do you solve this:
base is 10.
log(6x-2)=3
Click here to see answer by Earlsdon(6294)

Question 585353: how do you write the expression as a single logarithm?
base is 3.
log3 24 +log3 2
Click here to see answer by nerdybill(7011)

Question 585351: how do you expand the logarithm?
base is 2.
log2 32x^3
Click here to see answer by nerdybill(7011)

Question 585345: how do you solve?
27^4x=9
Click here to see answer by Earlsdon(6294)

Question 585345: how do you solve?
27^4x=9
Click here to see answer by nerdybill(7011)

Question 585347: What properties do you need to use to write expression as a single logarithm?
base is 2.
2log2 3 + log2 4
Click here to see answer by Alan3354(31538)

Question 585378: $2,350 is invested in account paying 9% compounded semiannually. How much will the account be worth after 8 years? Show your work.
thankyou
Click here to see answer by jim_thompson5910(28717)

Question 585376: Write the expression as a single log. Simplify.
1/2log9+3log2-2log(5x)
Click here to see answer by josmiceli(9819)

Question 585462: The population of fish in a lake is decreasing. There are currently 24,000 fish in the lake. The population is decreasing 6% each year. In how many years will there be 1/4 of the current number of the fish in the lake? Use formula T(n)=a(1+r)^n to solve problem?
-please someone help.
Click here to see answer by jim_thompson5910(28717)

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