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Question 31483: Please help me with those problems.
problem 1) If log 36 = a and log 125 = b
find log (1/12) in terms of a and b

problem 2) If log (base 4n) 40 square root of 3 = log (base 3n) 45
find n^3
Click here to see answer by stanbon(26252)

Question 31572: the negative logarithm of the hydrogen ion concentration in a solution expressed in moles per litre is called?
Click here to see answer by longjonsilver(2297)

Question 31647: Solve the equation. Give an exact solution.
4^x+6 = 7
This is a worksheet problem and I am getting stuck between using "ln" or "e" Your help would be appreciated.
Bonnie
Click here to see answer by mukhopadhyay(490)

Question 31685: Express as a single logarithm:
3log₆N - ((3log₆ N) / 2)
Click here to see answer by venugopalramana(3286)

Question 31882: Hello, could you please tell me the value of m in the following equation, and how you got the answer? p.s the 4 is over the m.

Click here to see answer by mbarugel(146)

Question 31874: Explain the error in the "proof" that 2 is less than 1.
1. 1/9 is less than 1/3
2. 1/3 squared is less than 1/3
3. log 1/3 is less than log 1/3
4. 2log 1/3 is less than 1log 1/3

Click here to see answer by mbarugel(146)

Question 31938: I am having trouble graphing the function
y=3log(5)(x+4)
I hav eserached and searched for help on this. Some examples tell me to

change to an exponent and others say find Domain, Range, asymptotes and x and
y intercepts. I am so lost. If you can lead me or guide me I would geatly appreciate the assistance.
Thanks
Click here to see answer by stanbon(26252)

Question 32353: These are the only two problems I was totally stuck on:
note: the 3's are like log10base
1.) Express the expression LOG3a+2log3b-log3c as a single logarithm expression.
2.) Express LOGb12 in terms of LOGb2 and LOGb3.

I don't even know how to start
Click here to see answer by stanbon(26252)

Question 32396: If log₄(y+2)=3, what is the value of y?
Click here to see answer by AnlytcPhil(958)

Question 32458: log2(x - 2) + 5 = 8 - log2 4
Click here to see answer by mukhopadhyay(490)

Question 32457: log3(5x+5) - log3(x2 - 1) = 0

Click here to see answer by mukhopadhyay(490)

Question 32455: log6(b2 + 2) + log62 = 2

Click here to see answer by mukhopadhyay(490)

Question 32486: Given log b 3= 0.6826 and log b 7 + 1.2091, evaluate log b 63.
Click here to see answer by mukhopadhyay(490)

Question 32454: logy = log16 + log49

Click here to see answer by mukhopadhyay(490)

Question 32450: log7 + log (n - 2) = log 6n
Click here to see answer by mukhopadhyay(490)

Question 32452: log516 - log52t = log52

Click here to see answer by mukhopadhyay(490)

Question 32463: log7 + log (n - 2) = log 6n
log516 - log52t = log52
log5m = log5125
logy = log16 + log49
log6(b2 + 2) + log62 = 2

logy = log16 + log49

Click here to see answer by mukhopadhyay(490)

Question 32451: log516 - log52t = log52
log5m = log5125
logy = log16 + log49
log6(b2 + 2) + log62 = 2
log3(5x+5) - log3(x2 - 1) = 0
log2(x - 2) + 5 = 8 - log2 4
Click here to see answer by mukhopadhyay(490)

Question 32512: I have no idea how to find the domain and range of the following:
note: x is the exponent of e
f(x)= 2e^x+1
And also, I have to solve the following equation for x:
note: the x2 is x squared
9^x2=1/81

Click here to see answer by josmiceli(3003)

Question 32597: could anyone please help me with these they are really confusing
log7 + log (n - 2) = log 6n
log5m = log5125
logy =1/4log16 +1/2log49
log6(b2 + 2) + log62 = 2
log3(5x+5) - log3(x2 - 1) = 0

Click here to see answer by mukhopadhyay(490)

Question 32632: 10^3r-2=18 this is a review question from my instructor and i am having a problem solving it.
Click here to see answer by stanbon(26252)

Question 32728: I can not figure out the last steps on how the answer is attain
Please help show each step also how to enter it in the calculator for graphing solution.
3^(2x+2) =7^X
ln (3^2x+2) ==ln 7^x
(2x+2) ln (3) = x ln(7)
2x ln (3)= x ln 7-2 ln 3
2x ln (30-x(7)==-2 ln(3)
x(2 ln 3-ln 7) = -2 ln (3)
x=
Now I am stuck how do I finish it???? How is it enter into the calculator. Must know for my math class.
Any help, very appreciated.
thanks,
Jody
Click here to see answer by mukhopadhyay(490)

Question 32679: Help!
Use the rules of logarithms to show that the following are equivalent.
log 144 = 2 log 3 + 4 log 2
7 log 3 + 5 log 3 = 12 log 3
2 (log 4 - log 3) = log (16/9)
-4 log 3 + log 3 = log (1/27)
Click here to see answer by mukhopadhyay(490)

Question 32905: True or False: log x^2/log y^2=log x/log y From what I've read it is false but I'm not sure. Can someone help me with this?
Click here to see answer by Earlsdon(4898)

Question 32907: The solution of the equation log(log x)=1 is x=10^10. Is this one true or false. I believe that it is false but want to make sure before I turn it in that it is correct.
Click here to see answer by venugopalramana(3286)

Question 32906: (log v3 81)*(log v81 3)=1 I have not idea if this one is true or false. Any ideas?
Click here to see answer by stanbon(26252)

Question 32975This question is from textbook algebra for college students
: Can anybody help me with this problem? I'm trying to teach this stuff to myself and am having trouble grasping logarithmic functions. Thanks.
log(x)- log(3)= log(6)This question is from textbook algebra for college students

Click here to see answer by sarah_adam(201)

Question 33088This question is from textbook College Algebra

: pH problems. I don't understand what the negative sign in front of the equation really means. -log (H)=pH Does it simply the opposite?
Here's my problem (one of several), If the pH is 6.4, what's H? So -log H=6.4
Does this equation say -10^6.4=H? It musn't because that's not the answer. Through trial and error I determined to get the answer I raise 10 to the opposite of 6.4/ 10^-6.4=H I guess my question is how does the negative sign gets to the exponet (pH)? Is that too complicated to show via email? Should I just know "how" to plug in and run with it? I'd really like to know how though. I've done all the other problems in this chapter with no trouble. I don't get why I can't get this. Frustrating!This question is from textbook College Algebra

Click here to see answer by longjonsilver(2297)

Question 33195: I am wondering if you would know how to solve the problem 2 ln x = 1

Click here to see answer by mukhopadhyay(490)

Question 33238: Im at a loss on this math problem. If someone could please help me I'd really appreciate it
Solve:
log x= log (x-3) 2
Click here to see answer by longjonsilver(2297)

Question 33416: Expand
logbx^2y^3/z^4
I do not understand how to expand this. Could someone help me.
Thank you
Click here to see answer by longjonsilver(2297)

Question 33364: log(2x^2)=2log(2x). Is this true or false?
Click here to see answer by mukhopadhyay(490)

Question 33368: e^lnx+lny=x+y. I believe this to be true but I am not sure. Am I right?
Click here to see answer by mukhopadhyay(490)

Question 33450: I am frustrated and i tried everthing but can't get it please help me. THanks

Condense the expression 1/5logthree32-2logthree x+1/2logthree y
Click here to see answer by stanbon(26252)

Question 33448: How to evaluate e^ 2.53 to three decimals places?
Click here to see answer by stanbon(26252)

Question 33366: log(10x/y)=1+log x-log y. I have no idea whether this problem is true or false. Could you please help show me the steps in finding the answer?
Click here to see answer by stanbon(26252)

Question 33460: log x/n=log(x^1/n)
Click here to see answer by mukhopadhyay(490)

Question 33476: i need help with this question
A village has 10,000 people. Due to emigration, the population is continuously decreasing at 4%. What will the population be in 8 years?
I got 13771.227. My friend got 127533.0.
which one of us is correct?

Click here to see answer by mszlmb(115)

Question 33371: a) Using a calculator, find log 10000 where log means log to the base of 10.
b) Most calculators have 2 different logs on them: log, which is based 10, and ln, which is based e. In computer science, digital computers are based on the binary numbering system which means that there are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he/she needs a log to base 2 which is not on any calculator. To find the log of a number to any base, we can use a conversion formula as shown here: log(b,a) = log a/log b.

Using this formula, find log(2,10000).

Click here to see answer by stanbon(26252)

Question 33522: I need help with the problem: simplify:
log_7(7^log_7(343))
thank you
Click here to see answer by longjonsilver(2297)

Question 33463: 10^2logx=2x
Click here to see answer by longjonsilver(2297)

Question 33461: The solution of the equation 4^x-1=8x is x=-2
Click here to see answer by longjonsilver(2297)

Question 33134This question is from textbook college algebra

: Find log 10000 where log means log to the base of 10. 2 different logs on on them: log, which is based 10, and ln, which is based e.In computer science, wich emans that ther are only 2 numbers available to the computer, 0 and 1. When a computer scientist needs a logarithm, he/she needs a log to base 2. To find the a number to any basem we can use a formula as shown here:
logb a=loga
logb
Using this formula, find log²10000.
This question is from textbook college algebra

Click here to see answer by danirivera5(2)

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