106 Answered Questions for the topic Logarithmic Equation

Logarithmic Equation

10/05/16

The half-life of radium is 1620 years. Find the constant k in the formula when the time is given in years.
We are supposed to take this problem and write an equation out of it and solve.
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Logarithmic Equation Solve Equation

09/24/16

what are the steps in this logarithmic equation to solve for 'x'?
2x*log1/3(3x+5) = log1/3(3x+5)    note: '*' means 'times' (product)  Fraction '1/3' is the base of log on both sides.  
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Logarithmic Equation Math Trigonometry Algebra

08/27/16

2e^-x-e^x=0
solve the equation 
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08/04/16

Applications of Exponential and Logarithmic Functions- Word Problem
The population of the world in 1987 was 5 billion and the relative growth rate was estimated at 2 percent per year. Assuming that the world population follows an exponential growth model, find the... more
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Logarithmic Equation Precalculus Logs

06/07/16

Logarithmic equations help
solve  1)log24+2log28=x   2)log5(x+2)-log5 7 = 2log53   thanks this site helps a lot!
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Logarithmic Equation Precalculus Logarithms Logs

06/07/16

Need help solving these log equations
Solve   1. log16x=3/2   2.logx81 = 3   3. Log21/8 = x   thanks   
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Logarithmic Equation Exponential Functions

06/07/16

logarthmic equation questions
1.How long, to the nearest tenth of a year, will it take a $5000 investment to double if the money is invested at 7% interest compounded quarterly? How long will it take to triple the... more
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Logarithmic Equation Precalculus Logarithms Test Anxiety

06/06/16

Need help understanding how to solve logarithmic equations for my test tommorrow.
1) 2x =4 3√8   2) 5x=76   3) log31/27=x   4)23x-1=30   thanks it's much appreciated!
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Logarithmic Equation Math Algebra Logarithms

06/03/16

Math Log Problem Please help
use the properties of logarithms to expand the logarithmic expression wherever possible evaluate logarithmic expressions ln((x+4)/(x2-16)5)(4/5)
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Logarithmic Equation Algebra Inequalities

05/16/16

1/(1+log(x)) + 1/(1-log(x)) > 2 solve for x
i have been stuck on  this problem lately 
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Logarithmic Equation Algebra Logarithms

05/02/16

Use the change-of-base theorem to find each logarithm: log3.14 81
Use the change-of-base theorem to find each logarithm: log3.1481
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Logarithmic Equation Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.
ln(exR6)   A. xe+6ln(R) B. e+R6 C. x+6ln(R) D. x+ln(6R) E. 1+6ln(R) F. None of the above.
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Logarithmic Equation Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.
Log9(*squareroot*Q)   A. 2Log9(Q) B. Log9(Q) C. 1/2Log2(Q) D. 1/2+Log9(Q) E. 1/2Log9(Q) F. None of the above.
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Logarithmic Equation Math Algebra Math Help

05/02/16

Rewrite the following expression by using the laws of logarithms.
Log8(x3)   A. Log8(3x) B. 3Log8(x) C. 3+Log8(x) D. Log3(8x) E. Log(x3) F. None of the above.
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Logarithmic Equation Compound Interest

04/20/16

how long will it take for an investment to triple if is compounded continuously at 5%
show the equation to find the answer as well
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Logarithmic Equation

04/17/16

Solve for x
the question contains logarithms and I don't know how to solve them. Can you please help explain this? 
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Logarithmic Equation Math Help For College

02/25/16

9^-x=30 using log properties.
From what I can guess, I can us the log property to bring the exponent -x in front of the 9 and make it -xLog9=Log3 (?)
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Logarithmic Equation

01/25/16

Condense the expression into the logarithm of a single quantity
5lnx-6ln (x+2)
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Logarithmic Equation

01/25/16

Expand expression
Log4 (x^4) sqrt y
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12/04/15

Natural Logarithms
e9-4x = 7472 We need to express the solution in terms of natural logarithms, having both the EXACT answer and the DECIMAL APPROXIMATION.Somehow got the decimal approximation, but not the exact... more
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Logarithmic Equation Precalculus Logarithms Variables

12/02/15

Solve for x
1. 23x+1=3x-2  
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Logarithmic Equation

11/08/15

t+2 log 4= t-1 log 7
I don't understand where to go from here. How do I get the t's to equal the rest?
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Logarithmic Equation

11/07/15

solve the equation. Round to the nearest thousandth 4^x=18
1.solve the equation. Round to the nearest thousandth 4^x=18   2.use graphing utility to find the solution of the equation. round to the nearest thousandth e^x + 2= 1/x+4   3. solve for the... more
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Logarithmic Equation

11/02/15

find the exact solution to each of the following logarithmic equation.
find the exact solution to each of the following logarithmic equation. 1. 11^2x-11^x+1=-182.4^2x+1-4^x+1=3
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Logarithmic Equation

10/29/15

find the exact solution to each of the following logarithmic equation.
find the exact solution to each of the following logarithmic equation. 1. log base3^x^logbase3^x=16 2. 11^2x-11^x+1=-18 3. log base4(x-1)+log base4(x+5)=2 4. log base10(x+80)-log... more
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