# Questions on Algebra: Logarithm answered by real tutors!

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 Algebra: Logarithm Solvers Lessons Answers archive Quiz In Depth

 Question 381806: The number of milligrams of a certain radioactive substance present at time (t) is given by A(t)= 774e^-(0.018t). How many milligrams are present at t=75? I hope I gave enough information. Please show each step. Click here to see answer by stanbon(57219)

 Question 382043: 2^3-x=3^x Click here to see answer by Fombitz(13828)

 Question 382006: log5(2x+8)=log5(2x+2) Click here to see answer by Fombitz(13828)

 Question 382085: log 24 use log 2=a and log 3=b Click here to see answer by richard1234(5390)

 Question 382036: p= (6)log base 9 the equation is 6=__ Click here to see answer by user_dude2008(1861)

 Question 382081: a sum of \$5000 deposited in an account grows to \$7000 in 5 years. assuming annual compounding, what interest rate is being paid? Click here to see answer by mananth(12270)

 Question 382123: write in logarithm form 10^x = 74 256^-0.5 = 1/16 write in exponential form log6 37=x Ln y = 53 Click here to see answer by robertb(4012)

 Question 382188: Use the properties of logarithms to write the following expression as a single term that doesn't contain a logarithm. 9^(5log[9](x)) Click here to see answer by stanbon(57219)
 Question 382188: Use the properties of logarithms to write the following expression as a single term that doesn't contain a logarithm. 9^(5log[9](x)) Click here to see answer by jsmallt9(3296)

 Question 382190: Solve the following logarithmic. if there is no solution, state No Solution (Round your to 4 decimal places) ln(x+5)-ln(x-4)=ln(x-2) Click here to see answer by stanbon(57219)

 Question 382045: let g(x)= log(subscript 2) (x^2+x-12). find the domain of g(X) Click here to see answer by jsmallt9(3296)

 Question 382210: Solve the following logarithmic equation. if there is no solution, state No Solution (Round your to 4 decimal places) ln(x-2)+ln(x)=0 Click here to see answer by stanbon(57219)
 Question 382210: Solve the following logarithmic equation. if there is no solution, state No Solution (Round your to 4 decimal places) ln(x-2)+ln(x)=0 Click here to see answer by jsmallt9(3296)

 Question 382233: HI, I have a couple problem im having trouble solving. I could sure use some help.thanks log1- log25= natural log1-natural log8= Click here to see answer by Alan3354(30959)

 Question 382256: simplify:log2 16y5/x7 simplify:log10 x+5/2x+9 (x+5/2x+9 is under a radical Use 2=a and 3=b: 1)Log 36 2)Log 150 3)Log 1.2 Click here to see answer by Alan3354(30959)

 Question 382247: Solve the following exponential equation. Write the answers as a decimal approximation (rounded to 2 decimal places) 9^(2x)=1657 Click here to see answer by solver91311(16868)

 Question 382270: Solve the following exponential equation. Write the answers as a decimal approximation (rounded to 2 decimal places) 9^(2x)=1657 Click here to see answer by Alan3354(30959)

 Question 382274: express as single logarithm: 1/2loga x -5loga x= Click here to see answer by CharlesG2(828)

 Question 382320: Find log (1/2)+log(2/3)+log(3/4)+log(4/5)+log(5/6+log(6/7)....log(98/98)+log(99/100) Click here to see answer by stanbon(57219)

 Question 382269: 2log3+log2x-log(x+1) I can't figure out how to write this as a single logarithm. Thank you! Click here to see answer by solver91311(16868)

 Question 382349: 1) solve the equation 4^x-3*2^x-4=0 2)solve the equation log2(x-4)-log2(x+3)=8 Click here to see answer by Fombitz(13828)
 Question 382349: 1) solve the equation 4^x-3*2^x-4=0 2)solve the equation log2(x-4)-log2(x+3)=8 Click here to see answer by jsmallt9(3296)

 Question 382407: How do i solve (1/6)=6^(n+4) Click here to see answer by nerdybill(6948)

 Question 382397: Graphs this following function. g(x)=-log(1/2)(x-1) Click here to see answer by jsmallt9(3296)

 Question 382290: Evalute the following logarithmic expression. Round off your answer to two decimal places 2log[8](11) Click here to see answer by jsmallt9(3296)

 Question 382289: Evalute the following logarithmic expression. Round off your answer to two decimal places log[5](554) Click here to see answer by jsmallt9(3296)

 Question 382655: Log 150 use 2=a and 3=b Click here to see answer by Alan3354(30959)

 Question 382844: Write in logarithmic form v^3=5 Click here to see answer by Fombitz(13828)

 Question 382902: log(base4)x-2log3=1 How can I solve Logarithms with different bases? How can I change the bases and make it similar. Click here to see answer by stanbon(57219)

 Question 382924: express as a sum of logarithm. ln (yz) Click here to see answer by nerdybill(6948)

 Question 382929: Use a calculator to find the natural logarithm base e. ln 70 Click here to see answer by stanbon(57219)
 Question 382929: Use a calculator to find the natural logarithm base e. ln 70 Click here to see answer by Alan3354(30959)

 Question 382934: find the indicated value of the logarithmic function: ln (e) Click here to see answer by Alan3354(30959)

 Question 382936: solve for x: log x + (log x + 21)=2 Click here to see answer by Earlsdon(6287)
 Question 382936: solve for x: log x + (log x + 21)=2 Click here to see answer by CharlesG2(828)

 Question 382926: find an approximate solution to 2^x=3 Click here to see answer by Earlsdon(6287)
 Question 382926: find an approximate solution to 2^x=3 Click here to see answer by stanbon(57219)

 Question 382958: find an approximate solution 3^x=8 Click here to see answer by stanbon(57219)
 Question 382958: find an approximate solution 3^x=8 Click here to see answer by Fombitz(13828)

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