445 Answered Questions for the topic Logarithms

Logarithms Math Math Help

07/18/18

Help with logarithms
An economist has found the following function for the number of mobile phones (in millions) sold worldwide since the year 2014: V(t) = 1244.74 · 1.1439t t= time in years. t=0 is the year 2014... more
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Logarithms

07/04/18

More logarithms
Given log54=a and log34=b, express log21.8 in terms of a and b... So how do you get two different bases from only log21.8.. are you supposed to like separate them to log29 - log25 ?
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Logarithms

07/04/18

Logarithms question..
Given log25m=n, express logm M2/125 in terms of n.  Please help me
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06/25/18

FInd the 1000th derivative of Ln(x+1)
I am struggling as i know the sequence but got no idea how to describe it mathematically!
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Logarithms

06/19/18

Log360=3log2+2log3+log5
Assume base a=10
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Logarithms

06/16/18

Logarithm Rules
Use the logarithm rules to prove.... log(5/36) - log(5/9) equals -log4 Show all working
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Logarithms Maths

05/26/18

How does the base of a logarithm affect a graph?
I know what changing the base of a logarithm does graphically, but I'm having trouble trying to explain it mathematically
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Logarithms

05/17/18

what is log250 to the base 10
log10250=?
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04/29/18

Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.
ln (x - 3) - ln (x + 8) = ln (x - 6) - ln (x + 8)
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Logarithms Calculus Pre Calculus

04/29/18

Solve the logarithmic equation. Be sure to reject any value that is not in the domain of the original logarithmic expressions. Give the exact answer.
log 3 (x + 6) + log 3 (x - 6) - log 3 x = 2
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04/29/18

Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1.
QUESTION IS:1/5 [5ln (x + 9) - ln x - ln (x^2 - 9)]
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04/29/18

Logarithim Question
Solve the Equations   1.log x=6   I got 100,000 but I am just checking to see if I am correct   2. log(lower)5 (regular)5^3   I got 3  
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Logarithms Simplify Evaluation

04/28/18

Evaluate or simplify the expression without using a calculator. ln 4√3
Show all steps.
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04/28/18

Find the domain of the logarithmic function. f(x) = log(x+5/x-2)
Show all steps. The equation is f(x)=log (x+5 over x-2)
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04/28/18

Find the domain of the logarithmic function. f(x) = ln (8 - x)
Show all work, step by step. 
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04/28/18

Evaluate the expression without using a calculator. log6 (1)/(sqrt(6))
The equation is log6 and then 1 over the square root of 6.
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04/28/18

Write the equation in its equivalent logarithmic form. root(3,125)=5
The 3 is outside of the root and the 125 is in the root.
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Logarithms

04/20/18

Can anyone help with this logarithm math problem?
This is the problem: ½ log a (x+2) + ½ log a (x-2) = 2/3 log a 27 And, this is what the teacher gave as notes to solve the problem: Log a √x+2 + log a √x-2 = log a 27^2/3                          ... more
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Logarithms

04/15/18

radium 226 has a half life of 1620 years, is used in medicine for treatment of disease.
radium 226 has a half life of 1620 years, is used in medicine for treatment of disease. Find the Value of K for radium-226.
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Logarithms

04/01/18

Log 3=0.3031 and log 4=0.4771 find log 60
The value of log 3 is 0.3031 and the value oc log 4 is 0.4771 find the value of log60
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03/27/18

After 3 days a sample of radon-222 has decayed to 58% of its original amount.
After 3 days a sample of radon-222 has decayed to 58% of its original amount. a) What is the half life of radon-222? b) How long will it take the sample to decay to 20% of its original amount?
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Logarithms

03/20/18

logarithmic
you start a savings account with $1000. this account earns 0.45% per month. When will it reach $1124?
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Logarithms

03/20/18

logarithmic
if a speaker is playing music at 45 decibels, what is the decibel reading of 6 identical speakers.?
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Logarithms

03/17/18

decibel question
    if a speaker is playing music at 45 decibels, what is the decibel reading of 6 identical speakers?
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03/16/18

Logarithm Equation
What is x in the equation log1/2 (1/9)=log2x2 
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