Questions on Algebra: Logarithm answered by real tutors!

Tutors Answer Your Questions about logarithm (FREE)

Question 591423: use the change of base formula to approximate log5 (6) to 3 decimal places

Click here to see answer by lwsshak3(6761)

Question 591420: solve 4+ln(27x) = 25-2lnx
Click here to see answer by lwsshak3(6761)

Question 592263: write the expression in a natural logarithm.
3 ln 3 + 3lnc.
I believe we need to add the like terms?

Click here to see answer by Alan3354(31519)

Question 592237: Consider the equation: 5^(2x-1)=3^(x+4)
Use the properties of logarithms to rewrite your exact solution in the form log(b)a
Click here to see answer by Edwin McCravy(8999)

Question 592438: Write the expression as a single natural logarithm.
4 ln 8 + ln 10

Click here to see answer by jim_thompson5910(28715)

Question 592458: log2 1/2 simplify
Click here to see answer by jim_thompson5910(28715)

Question 592631: Please help me solve this equation: log^7 100-log^7(y-5)=log^7 10
Click here to see answer by lwsshak3(6761)

Question 592673: g(x)=4^(x-3)+2
Click here to see answer by stanbon(57967)

Question 592472: evaluate the limit!
Lim (e^4t) -1/t
x->0
i thought e^0=1 t=0
so 0/0 =0 but it said it was wrong
i also tried infinity but it was wrong
Click here to see answer by ntnk(54)

Question 592826: Please help me solve this equation: e^x=11
Click here to see answer by jim_thompson5910(28715)

Question 592826: Please help me solve this equation: e^x=11
Click here to see answer by Alan3354(31519)

Question 592768: finding the exact value of log1341(81) over log1341(1/3)
Click here to see answer by jsmallt9(3296)

Question 592481: evaluate the limit
lim x/arctan(5x)
x->0
is it 1?
x=0
arcsin is cos(0)/sin(0)=1/0
so 0/1/0 is.....
Click here to see answer by jsmallt9(3296)

Question 593150: solve the equation. round any solutions to the nearest fourth decimal place.
4ln(2x)+ 3ln(x^5)=9
Click here to see answer by stanbon(57967)

Question 593171: Solve. Round any solutions to the fourth decimal place.
4log (base 3) (2r) + log (base 3) (r^3) = 4
There's a base of 3 on the logs, I just don't know how to punch it in.
Click here to see answer by scott8148(6628)

Question 593362: Could you please show me the steps to simplifying the following logarithm? Thanks.
3ln((e^2)-e)-3
I know the answer is 3ln(e-1) but am not sure of the steps.
Click here to see answer by jim_thompson5910(28715)

Question 593378: Did i do this right? I have to expand it from a condensed form
question: log base 2(8)(sqrt y)
my answer: log base 2 (8) + log base 2 (sqrt y)
Click here to see answer by solver91311(17077)

Question 593562: Please help me graph the rational function y = .
Click here to see answer by Edwin McCravy(8999)

Question 593659: how do you find the inverse of f(x) = log 2x
Click here to see answer by lwsshak3(6761)

Question 593650: {log^3, 27 }
Click here to see answer by Alan3354(31519)

Question 593714: What is log base of 4 (x^2-12x) - log base of 4 X =1
Click here to see answer by Alan3354(31519)

Question 593737: Use properties of logorithms to find exact value of expression.
2log2^3-log2^7
Click here to see answer by nerdybill(7003)

Question 593766: what is 27^(3/4)
Click here to see answer by rfer(12730)

Question 593940: Log(7x-12)=2logx
Click here to see answer by lwsshak3(6761)

Question 593567: solve the equation and approximate three deciaml places.
1nx+1n(x+1)=1
Click here to see answer by lwsshak3(6761)

Question 593558: Please show me how to sketch the graph of the rational function y=4x/(x^3-4x).
Click here to see answer by lwsshak3(6761)

Question 593953: Log(75/16)-2log(5/9)+log(32/243)
Click here to see answer by jsmallt9(3296)

Question 593982: a = 4 root6/root2 +root3 then the value of a+2*root2/a-2*root2 + a+2*root3/a+2*root3

Click here to see answer by jsmallt9(3296)

Question 594309: How do I rewrite the statment of log4(8) using the properties of logarithms and simplify if possible
Click here to see answer by jsmallt9(3296)

Question 594547: in(x+4)-in(x+1)=inx
Click here to see answer by stanbon(57967)

Question 594549: 8x+3 =16x−1
Click here to see answer by jim_thompson5910(28715)

Question 594549: 8x+3 =16x−1
Click here to see answer by stanbon(57967)

Question 594563: (1/8)^-2x=2^x+3
Click here to see answer by Alan3354(31519)

Question 594684: Solve:
log(base 2) x + log(base 6) x =3
Please show steps. thanks
Click here to see answer by lwsshak3(6761)

Question 594666: please help me find the value of x
log(base1/7)(x)+log(base1/7)(5x-28)=-2
I tried and seem to get a quadratic equation with no solution (negative sqrt).

Click here to see answer by lwsshak3(6761)

Question 594545: solve the equation log8(3x+7)=log8(7x-9)
log4(x)=3/2
loga(1/8)=-3
log8(x+9)=log8(3x-14)
log4(x^2+6)=log4(5x)
logy16=4
log7n=-1/2
log7(8x+20)log7(x+6)
log5(x^2-30)=log5(6)
Click here to see answer by jsmallt9(3296)

Question 594712: how to solve -2*e^(-3n-8)-3=-45
Click here to see answer by jsmallt9(3296)

Question 594466: Can you please try to show your steps on how you got the following answers?
Given log[a](5)=2.3 and log[a](3)=1.6, fill in the table below with the appropriate values.
x 15 ; 9 ; 5/3 ; 5a ; (3)/(a^2)
log[a](x)
Click here to see answer by jsmallt9(3296)

Question 594731: how do i evaluate the expression log[32](8) using the change of base formula

Click here to see answer by AnlytcPhil(1278)

Question 594731: how do i evaluate the expression log[32](8) using the change of base formula

Click here to see answer by jsmallt9(3296)

Question 594784: Given that = m and = n, express in terms of m and n:
A)
B)
Click here to see answer by AnlytcPhil(1278)

Question 594905: express 1/2lnx-4ln(x-1)+3ln(x+7) as a single logarithm
Click here to see answer by jsmallt9(3296)

Question 594729: Please help me to Solve: ln(x+2)-ln(x-1)=1
Click here to see answer by jsmallt9(3296)

Question 594901: express log(x/1000) as the difference between a logarithm and a counting number
Click here to see answer by jim_thompson5910(28715)

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