Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 254422: log 0.01= y ?? please answer my assignment ^_^

Click here to see answer by richwmiller(9143)

Question 254433: log(4-x)=log(x+8)+log(2x+13)
Click here to see answer by palanisamy(496)

Question 254453: The third answer in each row can be obtained from the first two answers in that row. Explore these examples to conjecture a way to combine the first two answers to get the third.
log8(512), log2(512), log16(512)
log1/5(125), log1/125(125), log1/625(125)
log7(49), log49(49), log343(49)
log4(64), log8(64), log32(64)
I've tried using exponents to combine them but I can't seem to find anything that is constant enough that I can use it for all of them. Can you please show me how to go about doing this? Thank you =)
Click here to see answer by richwmiller(9143)

Question 254602: 5=ln(x+8)
Click here to see answer by solver91311(16897)

Question 254610: Use the properites of logarithns to condende the expression:
1/2[3log(w-4)+2log(w+5)-log7]
Click here to see answer by drk(1908)

Question 254633: Write the following expression in logarithmic form.
122 = 144
Click here to see answer by drk(1908)

Question 254759: What does x= ?
2log base5(4x+1)=7
Click here to see answer by edjones(7569)

Question 254819: How do I go about this question?
Find the value of x for:
log2(x2 + 4x + 3) – log 2(x2 + x) = 4
Click here to see answer by palanisamy(496)

Question 254819: How do I go about this question?
Find the value of x for:
log2(x2 + 4x + 3) – log 2(x2 + x) = 4
Click here to see answer by Theo(3468)

Question 254879: What is the solution set for: 5y-4=11y+26

Click here to see answer by richwmiller(9143)

Question 254894: Let logX(base A) = C , and logX(baseB) = D. Find the general statement that expresses logX(base AB), in terms of C and D.
Please help anyone. I think the answer is C+D or C+D/2. All help is much appreciated.
Thanks
Click here to see answer by drk(1908)

Question 254974: How do you solve the problem Log a (64) = 6. Can you please explain the steps to it also?
Thanks
Click here to see answer by drk(1908)

Question 254974: How do you solve the problem Log a (64) = 6. Can you please explain the steps to it also?
Thanks
Click here to see answer by palanisamy(496)

Question 254980: log(x-2)9=2
Click here to see answer by drk(1908)

Question 255017: -0.792 = ln x
solve for x
answer in 3 decimal places
Click here to see answer by stanbon(57412)

Question 254786: I need step by step on solving
LOG 10/3 without a calculator
This is what I tried:
log 10/3 = x
10^x = 10/3
How do I solve this problem step by step from this point?
Click here to see answer by CharlesG2(828)

Question 212: What is a logarithm of a negative number?
Click here to see answer by rfadrogane(214)

Question 255610: 3log2 64+e^ln5+log1/3 9
Click here to see answer by drk(1908)

Question 255620: log[9]729=v value of v

Click here to see answer by stanbon(57412)

Question 255650: 3log(base 5)X=4log(base 5)2-1/2log(base 5)4
Click here to see answer by stanbon(57412)

Question 255665: 0.9=log(0.2-x/x)
Click here to see answer by drk(1908)

Question 255665: 0.9=log(0.2-x/x)
Click here to see answer by CharlesG2(828)

Question 255655: log(x+2)=log x+2
Click here to see answer by stanbon(57412)

Question 255655: log(x+2)=log x+2
Click here to see answer by drk(1908)

Question 255652: log w = 7 log n = 4 (what is log wn?)
Click here to see answer by solver91311(16897)

Question 255653: approximate soulution of 7^x=3^x+1
Click here to see answer by drk(1908)

Question 255651: log3(a-2)+log3(a-2)=2
Click here to see answer by drk(1908)

Question 255702: Anne deposits $2500 in an account that earns 7.5% annual interest compounded quarterly. Find out how long it will take for Anne to earn $500 in interest
Click here to see answer by EMStelley(187)

Question 255701: Joe deposits $1000 in an account that earns 5% annual interest compounded semiannually. find out how long it will take for the initial amount to double
Click here to see answer by EMStelley(187)

Question 255524: log[x]=log(x+1)+1
Click here to see answer by EMStelley(187)

Question 255855: write as a single term that does not contain a logarithm:
eIn8x^5-In2x^2

Click here to see answer by stanbon(57412)

Question 256085: log base 9 of (x-6) + log base 9 of (x+2) =1
Click here to see answer by nerdybill(6963)

Question 256078: log base 3 of (2x+3)- log base 3 of (x-2)=2

Click here to see answer by scott8148(6628)

Question 256241: What is the answer to
I don't understand ho w to do this problem at all.
THANKS!
Click here to see answer by scott8148(6628)

Question 256475: log 3x=log2+log(x+5)
Click here to see answer by Fombitz(13828)

Question 256565: How should I simplify:
log 100^x
Click here to see answer by Alan3354(30993)

Question 256682: log2 (x-3)^3 = 6
Click here to see answer by stanbon(57412)

Question 253695: If log(base14)7=a and log(base14)5=b, express log(base35)28 in terms of a and b.
Click here to see answer by jsmallt9(3296)

Question 255834: Write the given expression as a single logarithm.
4ln(x)-2(ln(x^3)+4ln(x))
Click here to see answer by jsmallt9(3296)

Question 256889: e^x-10e^-x=3
Click here to see answer by Alan3354(30993)

Question 256912: (log[2]3)+(log[2]x)=(log[2]5)+ (log(3x-4))
Click here to see answer by Fombitz(13828)

Question 256929: e^(2x)-3e^x+2=0
Click here to see answer by Fombitz(13828)

Question 257220:
Write the following expression as a logarithm of a single quantity: 11 lnx-15lnx (x^2 + 2).
I have no idea of how to do this?
Click here to see answer by drk(1908)

Question 255790: log base 5(x+9)=1-log base 5(x+5)

Click here to see answer by jsmallt9(3296)

Question 257364: Please help me solve the problem:
the x is the number i am looking for. but the x is not really next to the log it is under
Click here to see answer by drk(1908)

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