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April 16, 2014

Search: logarithmic of surds

Number of results: 300

Math
use the properties of logarithms to simplify the logarithmic expression. log10 (9/300) Please explain!!
Tuesday, July 28, 2009 at 10:17pm by Hannah

Physics
(Sound Intensity) = (Energy)/[(Area)*(Time)] It can be converted to decibels using a logarithmic formula, if that is what they want.
Sunday, November 21, 2010 at 5:07pm by drwls

Math
Please help, thank you. Write the logarithmic equation in its equivalent exponential form. log 0.000001 = 6
Friday, July 29, 2011 at 6:30pm by Ms. Tracy

easyish MATH
a trillion is a thousand billion. These numbers almost have to be drawn on a logarithmic scale
Monday, September 19, 2011 at 8:28pm by bobpursley

collge calculus
find the derivative of y=[(4^(7x))(7^(4x))]/[10^(e)] without using logarithmic differentiation!
Wednesday, January 25, 2012 at 2:16am by Anonymous

Calculus Help
Use logarithmic differentiation to find the derivative of the function. show steps please! y=(e^-xcos^2(x))/(x^2+x+1)
Sunday, March 16, 2014 at 4:12pm by Tim

MATH
How do I Find The Domain, Vertical Asymptote, and X- intercept of this logarithmic function: f(x)=6+log base 6 (x-3) HEEEEELLLLPPPP!!!!!!!! What do you need help on?
Saturday, October 28, 2006 at 5:42pm by James

college
I'm dealing with logarithmic- need help with some questions please- evaluate log12 782 to three decimals
Saturday, December 5, 2009 at 2:28pm by gigi

Surds please help!
(square root of a + 3 square root of b /a - b) - (2/square root of a + square root of b).
Thursday, March 6, 2014 at 3:17am by Jnr John

calculus
solve the logarithmic equation. Be sure to reject any value of x that is not in the domain. In square root x+7=1 x= ? What is the decimal approximation to the solution? x= ?
Tuesday, January 1, 2013 at 10:18am by NayNay

Calculus Help
use logarithmic diff. to find the derivative of the function. Show steps please! so I can see how it is done. Thank you so much! y=(e^(-x)cos^(2)(x))/(x^(2)+x+1)
Tuesday, March 18, 2014 at 10:47pm by Maho

Precalculus
This is for solving exponential/logarithmic functions: (This is a base e Logarithmic function I would assume): e^(4x)/10 =4^x-2 ? I understand the properties of logs for the most part, but I have a hard time figuring out the step-by-step process on how to solve exponential/log...
Tuesday, December 11, 2012 at 5:51pm by Sarah

Logarithmic Function
You continue to approach the station and brake after your sequence begins at 10 km. The craft does not stop until d = 0
Sunday, May 17, 2009 at 8:37pm by Damon

Precalculus
I REALLY NEED HELP WITH THIS QUESTION, PLEASE HELP!! Give an example of a logarithmic function g, which has a vertical asymptote x = 2, and passes through the origin.
Wednesday, March 3, 2010 at 12:42pm by jh

calculus
Use logarithmic differentiation to find the following derivative: y=(x+6)^4/(x-5)^6. Please show all step so I can understand for future reference.
Saturday, April 20, 2013 at 9:39pm by anonymous

Calculus
Use logarithmic differentiation to find the following derivative y=(x+6)^4/(x-5)^6. Please show all steps so I can follow for future understanding. Thanks.
Sunday, April 21, 2013 at 10:55am by Sean

algebra
Your question is much too vague. Are you suggesting the relation is linear? or exponential? or logarithmic? You only have 2 ordered pairs, and then are trying to extrapolate.
Monday, May 12, 2008 at 10:43pm by Reiny

math
rewrite as logarithmic equation 3^-3 = 1/27 would it be log -3 27 = 3?
Sunday, July 4, 2010 at 6:32pm by Hannah

math;SOS
solve the logarithmic equation. log(5x+7)=1+log(x-9)
Sunday, December 2, 2012 at 8:53pm by kristina

math
Give an example of a logarithmic equation that cannot be solved and explain why it cannot be solved.
Monday, March 18, 2013 at 8:01pm by Hasane

Algebra
Solve the logarithmic equation. log2(4x)-log2(x+3)=1
Friday, July 29, 2011 at 7:32pm by Meghan

math
solve the logarithmic equation. log(5x+7)=1+log(x-9)
Sunday, December 2, 2012 at 6:23pm by brad

Math- Alg 2
Which logarithmic equation is equivalent to the exponential equation below? 3^x=28
Friday, January 27, 2012 at 12:44am by CAMILA

Math/Trig
Which logarithmic equation is equivalent to L^m = E 1) LogL E = m 2) logE L = m 3) logm E= L 4) logE m= L
Saturday, February 11, 2012 at 1:25pm by Charles

math
Give an example of a logarithmic equation that cannot be solved and explain why it cannot be solved. (3 marks)
Sunday, March 17, 2013 at 11:04pm by Jonathan

prcalculus
change the logarithmic expression to an equivalent expression involving an exponent. log416=x
Sunday, March 24, 2013 at 9:20pm by deanne

math
what is the solution for the logarithmic equation log2(x2+2x-44)=2? x2=x squared
Tuesday, December 4, 2007 at 9:18pm by sophea

Math
Solve the logarithmic equation. Please show all of your work. Loga(x+4) + loga(x-4) = 4
Wednesday, June 8, 2011 at 11:23pm by Bethany

Math
Solve the logarithmic equation for x. Log3(x^2 − 5x − 9) = 3 I Have no idea
Tuesday, November 22, 2011 at 12:12pm by Anonymous

Algebra- IS this right?
Evaluate The Logarithmic Equation For 3 Values Of X Greater Than -1 3 Between -2&-1 &x=-1 Y = Ln(x + 2) Y = Ln(x + 2) ,x=3,y=1.6,1.6>-1. X=-1,y=0.
Sunday, May 9, 2010 at 11:12pm by Dani

Calculus AP
5.2 The Natural logarithmic function Differentiate the function problem # 13: f(x)= sqrt(x) Inx
Wednesday, April 18, 2012 at 11:57pm by jackie

college algebra
Solve the logarithmic equation. Log x +log2x = 4 Wouldn't this be no solution because log x is undefined?
Wednesday, April 24, 2013 at 3:49pm by Deb

college algebra
solve the logarithmic equation. Please show all work. log5x+log5(x-3)=log5(x+5)
Sunday, March 4, 2012 at 4:33pm by Tammy

college algebra, Please help!!
solve the following logarithmic equation 2log2(lower than g)^(x-2)+log2^2=3 x=?
Tuesday, November 27, 2012 at 11:00pm by ladybug,I need help please.

Math
Write the exponential equation in its equivalent logarithmic form. 5^4 = 625 I know I have to change it to log or ln and something is equal to I think either 4 or 5.
Friday, July 29, 2011 at 6:38pm by Ms. Tracy

precalc/trig
Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places. 20 log(2x+2)=45
Monday, December 5, 2011 at 2:01pm by Alexander

algebra
express as an equivalant expression that is a single logarithmic and simplfy if poissible loga(2x+10)-loga(x^2-25)
Friday, June 3, 2011 at 11:09pm by mema

Algebra
Hi, I'm trying to learn logarithmic form and I'm kinda of stuck Write in exponential form: 1.log(3)6561=x 2.x^4 = 625 Thank you
Monday, November 21, 2011 at 12:33pm by Thomas

algebra
Hi, I'm trying to learn logarithmic form and I'm kinda of stuck Write in exponential form: 1.log(3)6561=x 2.x^4 = 625 Thank you
Monday, November 21, 2011 at 5:05pm by Thomas

math
chane the logarithmic expression to an equivalent expression involving an exponent log416=x **the 4 is supposed to be dropedd down lower by the g.**
Thursday, January 3, 2013 at 10:32pm by Heather

Calculus
Use logarithmic differentiation to find derivative of y=x^x^2 x > 0. Please show all steps so I can follow the steps. Thank you.!
Saturday, April 20, 2013 at 9:45pm by Sean

Algebra
I need to rewrite the following as an equivalent logarithmic yt = x I wrote logy=logt=logx. My teacher said that was wrong. Can someone guide me on the right answer?
Saturday, May 8, 2010 at 3:41pm by dani

pre-calculus
Change the logarithmic expression to an equivalent expression involving an exponent. Log7343=x the 7 should drop down lower than the 343.
Tuesday, October 9, 2012 at 5:06pm by ladybug

Math
Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of In(x) in your answer.) log[8.4](112)=
Tuesday, October 30, 2012 at 10:06pm by Ms. Jackie

Calculus
Use logarithmic differentiation to find the derivative of the following: y=x^x^2 x>0 Please show all steps so I can following for future understanding
Sunday, April 21, 2013 at 10:57am by Sean

Calculus
For logarithmic expression, the value of u in ln u should be more than 0. So: (13x + 6)/(5 - 17x) > 0 Use the number line to solve this, you'll get the result. If my calculations are correct, then: (-6/13,5/17)
Thursday, March 3, 2011 at 10:28pm by agrin04

pre-cal
use the properties of logarithms to condense the logarithmic expression. write the expression as a single logiarithm whose coefficient is 1. 2IN(x+3)-3INx
Tuesday, October 9, 2012 at 9:47pm by ladybug

adv functions
Hi! I need help with determining the value of each of the following logarithmic expressions. Do not change the bases- thx a) log[base8]4 b)log[base(1/3)]27
Sunday, April 7, 2013 at 10:17pm by Julia

precalculus
solve the logarithmic equation . express solution in exact form log5(x-9)+log5(x+4)=1+log5(x-5)
Friday, November 11, 2011 at 12:00pm by mz deedee

precalculus
solve logarithmic equation in exact form only. show work. log_5(x-3)+ log_5(x-6)-log_5(x+1)=2
Sunday, January 15, 2012 at 1:22pm by Sara

Algebra
For the exponential function ex and logarithmic function log x, graphically show the effect if x is doubled. I am having trouble figuring out my points to plot on the graph.
Monday, February 16, 2009 at 3:04pm by Mario

college algebra, Please help!!
change the exponential expression to an equivalent expression involving a logarithm. 1.9=a^6 a=1.1129 is this the correct logarithmic expression???
Tuesday, November 27, 2012 at 10:29pm by Heather

Pre-Cal
Solve the following logarithmic equation. Exact words only: log 3(x+4) = 2+log3(x-20) the 3 in the part of log (3)should be lower just didn't know how to type it in here
Tuesday, January 1, 2013 at 9:02pm by phyllys

Math
Solve the logarithmic equation. Express your solutions in exact form only. Please show all of your work. log3(x+2) + log3(x+8) 2 = log3(x+3)
Thursday, June 9, 2011 at 7:33pm by Allison - Carson

algebra
change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?
Sunday, September 2, 2012 at 5:50pm by alli

alg
change the logarithmic expression to an equivalent expression involving an exponent. 4^16=x log (base4)16=x is it x=e^2?
Sunday, September 2, 2012 at 9:52pm by alli

Math - Logarithmic
log_3(x^2/(x-2)) = 2 nothing changed on the right x^2/(x-2) = 3^2 = 9 x^2 = 9x - 18 x^2 -9x + 18 = 0 (x-3)(x-6) = 0 for once I agree with your book, 3 or 6
Wednesday, December 12, 2007 at 9:37pm by Damon

Logarithmic Scales
In 1995, Japan had an earthquake of magnitude 7.2. What is the magnitude of an earthquake that is twice as intense?
Wednesday, March 28, 2012 at 11:26pm by Anonymous

Algebra
Please help...Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. y=log7 x
Saturday, June 12, 2010 at 4:50pm by J. Ed

Algebra
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. y=log7 x
Sunday, June 13, 2010 at 5:51pm by Tom Allison

logarithmic functions
okay. how would you solve: 2log(subscript6)(4) - (1/3)log(sub6)(8) = log(sub6)(x)
Thursday, April 7, 2011 at 12:02am by Haley

College Algebra
Solve the logarithmic equation for x. log(base 3)(x+6) - log(base 3)(x+1)=1 urgent! help!
Tuesday, December 4, 2012 at 9:38pm by Patrick:)

math
Determine the value of each of the following logarithmic expressions. Do not change bases. A) log8 4 <----- 8 is subscript b)log 1/3 27 <---- 1/3 is subscript
Monday, March 19, 2012 at 4:17am by mark

ALGEBRA
Solve the exponential equation. Give the exact value for x. (Express all logarithmic functions in terms of ln(x) in your answer.) text((a) ) e^x = 10 x = text((b) ) e^x = 2.0 x = text((c) ) e^x = 37.9 x =
Wednesday, April 25, 2012 at 8:39pm by Randy

maths
Solve this logarithmic equation. 3 log 2 base x + log 18 base x = 2
Wednesday, May 8, 2013 at 7:29am by Shane

maths
Solve this logarithmic equation. 3 log 2 base x + log 18 base x = 2
Wednesday, May 8, 2013 at 7:30am by Shane

Surds please help!
(√a + 3√b)/(a-b) - 2/(√a+√b) Note that (√a-√b)(√a+√b) = a-b, so (√a + 3√b)/(a-b) - 2/(√a+√b) * (√a-√b)/(√a-√b) (√a+3√b)/(a-b) - 2(√a-√b)/(a-b) (√a+3&#...
Thursday, March 6, 2014 at 3:17am by Steve

calculus
use the properties of logarithms to condense the logarithmic expression. write the expression as a single logarithms whose coeffient is 1. Inx+In5=? Can you show work
Monday, January 7, 2013 at 11:05pm by Heather

Algebra 2
Can someone please explain to me how to solve logarithmic equations? Some examples are: -5=log2X 3^5x+1= 40 and log6X+(log6)7=(log6)35 I hope that makes sense because logs are hard to type.
Friday, April 18, 2008 at 1:11pm by JaneLee

logarithmic differentiation
Do you want the derivative of that? Does the "fourth root" apply to the numerator only, or the complete fraction (x^2+1)/(x^2-1) ? You need to write the function in a clear nonambiguous manner, using parentheses where necessary. Use ^1/4 for fourth roots.
Monday, May 14, 2012 at 4:15pm by drwls

math--please check
Change the logarithmic equation to an equivalent equation involving an exponent. log8^64=2 **note that the 8 should be lower than the g** 8^(log64)=8^2 64=8^2 is this correct
Wednesday, January 9, 2013 at 7:24am by Roger

College Algebra
Solve the logarithmic equation. Express your solutions in exact form only. Please show all of your work. log base 6 (64x^3+1)-log base 6 (4x+1)=1
Wednesday, January 18, 2012 at 3:00am by Jo

Math(Please help)
Logarithmic differentiation f(x)=(2x-1)^-2 (x+3)^4 at x=1 f'(x)= -2*2/2x+1 + 4*1/x+3 [(2x-1)^-2)(x+3)^4 and then I plug in 1. I am having trouble getting an answer when I plug in 1.
Saturday, April 30, 2011 at 3:49pm by Hannah

Intermediate Algebra
Can anyone help? I have a test and this is the last question I need answered. I'm lost and exhausted! Thanks for any help! Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. y...
Sunday, June 13, 2010 at 8:53pm by Kris B

Math
Select any concept from this week.(Linear equations,exponents, Logarithmic problems Write a 350- to 700-word response in which you examine the importance and applicability of this concept. Describe why this concept is important and how it can be applied to society in general
Thursday, March 29, 2012 at 9:02pm by Tiara

College Algebra
For the exponential function e^x and logarithmic function log x, graphically show the effect if x is halved. Include a table of values for all four functions. Could someone please explain to me what occurs when things are halved.
Thursday, May 14, 2009 at 9:14pm by Carmen

Physics
Of course it does not work. dB has a special logarithmic meaning, and you need to apply that. Each doubling of the the distance changes the intensity 6db, so you want to have a change of 35db, so your answer ought to be near 6 doublings 10,20, 40, 80, 160, etc. Use the log ...
Wednesday, October 22, 2008 at 12:08am by bobpursley

Applied Calculus
Thanks to both of you, I won't forget how to do this next time! It makes much more sense now, and will be even easier on basic functions versus logarithmic/exponential functions. I think it was the natural log that tripped me a little bit there, but thank you for the ...
Friday, April 12, 2013 at 2:47pm by Jacob

Chemistry
If the pH of grapefruit is 3 and the pH of beer is 5, how many times more acidic is the grapefruit juice than the beer? According to the logarithmic scale
Wednesday, November 10, 2010 at 5:03pm by Ash

Math - Logarithmic
multiply both sides by (3x+11)(x+1) (x-3)(x+1) = 3x+11 x^2 - 2x - 3 = 3x + 11 x^2 - 5x -14 = 0 (x-7)(x+2) = 0 ok?
Wednesday, December 12, 2007 at 7:21pm by Damon

Algebra II
How to solve Log (9x+5) - Log ((x^2)-1) = 1/2 16 16 (The 16 is from the logarithmic function : b) (y=log x) b Could anyone post the answer to this?
Tuesday, May 18, 2010 at 4:05pm by Anonymous

Calculus
Find the solution of the logarithmic equation: ln(x+8)+ln(x8)=0 Im not sure how to approach this one. I tried moving the ln(x-8) to the other side and solving for x and that did not work. I also tried putting everything as an exponent to e. please help! thanks
Friday, October 29, 2010 at 6:53pm by Adam

calculus
really stuck on these two, steps would be greatly appreciated. gotta find the derivative thanks! first one: f(t)=2^(log5t) the 5 is the base second one: y=(2(x^2) - 1)^5 /(√(x+1) for the second one you have to use logarithmic differentiation
Wednesday, October 31, 2012 at 11:38am by nicole

Calculus
Suppose that ax^2 + bx + c is a quadratic polynomial and that the integration: Int 1/(ax^2 + bx + c) dx produces a function with neither a logarithmic or inverse tangent term. What does this tell you about the roots of the polynomial?
Thursday, January 10, 2008 at 2:41pm by mathstudent

calculus
solve the following logarithmic equation. Be sure to reject any value of x that is not in the domain of orginal expression. then in the solution set round to two decimals places. Inx=8 I get e^8 But am having a hard time with rounding two decimal places. Can someone help?
Tuesday, January 1, 2013 at 2:46am by Jennifer

Pre-calc Solve logarithmic
Not even close. ln√(x-8) = 5 1/2 ln(x-8) = 5 ln(x-8) = 10 x-8 = e^10 x = 8+e^10
Wednesday, October 30, 2013 at 9:46pm by Steve

Logarithmic Function help
What you have so far is correct. you would end up with x = ln(7/5)/.2 which is the same as their answer. You just have a different form. notice you are dividing by .2 or 1/5 and isn't division by 1/5 the same as multiplying by 5? there you go! ln(7/5)/.2 = 5ln(7/5)
Sunday, June 7, 2009 at 1:48pm by Reiny

logarithmic eq:
3logx = 6-2x Thanks This is a problem that is best solved by iteration, or graphing. I recommend graphing. There is no closed-form solution. You need to solve it by graphical or iteration (trial and error) methods. The answer is approximately 2.43, if the log base is 10.
Friday, February 23, 2007 at 8:47am by Jen

Pre-Calculus
Find the inverse function for the function f(x)=2^(x)+1/2^(x)-1 You will need to use some properties of logarithmic functions to find the inverse of this particular function.
Tuesday, April 30, 2013 at 2:12pm by Thomas

ALGEBRA
(a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log_(8.5) \(127\) = Give a calculator approximation (correct to four decimal places). log_(8.5) \(127\) ~=
Monday, April 16, 2012 at 10:58am by Randy

Math - Logarithmic
Is the following correct when restating logs with variables to exponential? Log: log_a(a^3) --- base = a Exp: a^3 = a I know when dealing with real numbers, this is what you do: Log: log(10^5) Exp: 10^5 = 100 000
Thursday, December 13, 2007 at 7:20pm by Anonymous

algebra
Rewrite the following as an equivalent logarithmic equation.Do not solve. y^t = x answer logy+logt=logx-is this right also Express as an equivalent expression that is a sum of logt (3ab) the t is at the bottom of the g answer log3+loga+logb logarithms.
Wednesday, May 5, 2010 at 2:13am by dani

Algebra
Evaluate the logarithmic function for three values of x between zero and one, three values of x greater than 1, and at x=1. Show your work. Use the resulting ordered pairs to plot the graph. State the domain and the range of the function. g(x) = ln x + 2
Saturday, June 19, 2010 at 9:19am by Zen

ALGEBRA
(a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log_(8.9) \(135\) = (b) Give a calculator approximation (correct to four decimal places). log_(8.9) \(135\) ~=
Tuesday, June 12, 2012 at 5:02pm by Urgen please help

algebra
Evaluate the logarithmic equation for three values of x that are greater than 2, three values of x that are between 1 and 2, and at x=2. y = -log(sub)3 (x - 1) I don't know if I did this right, I changed it to -3^y=x-1. I am having difficulty replacing x and finding out what y...
Sunday, May 9, 2010 at 6:06pm by Celest

Trigonometry
Express each of the following as a single logarithmic expression. All exponents must be left in radical form: 1.) 2logx-3logy 2.) logx-logy+logz 3.) 1/3log5x+2/3log6x 4.) 2/3(logbase2 x - logbase2 y) I dont understand these problems at all. Can someone please solve and explain...
Saturday, May 19, 2012 at 11:00am by Nabil

Calculus - Integrals
arccot is simply related to arctan: arccot(x) = pi/2 - arctan(x) You can integrate arctan using partial integration. You get x arctan(x) - integral of xdx/(x^2+1), the latter integrand contans in the denominater the derivative of the numerator (up to a factor 2), so you get a ...
Thursday, March 13, 2008 at 9:43pm by Count Iblis

Algebra
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. Use the resulting ordered pairs to plot the graph State the equation of the line asymptotic to the graph (if any). y = (1/4...
Monday, September 6, 2010 at 3:56am by Nicole

logarithmic differentiation
y = [(x^2 + 1)(x^2-1) ]^(1/4) = (x^4 - 1)^(1/4) ln y = (1/4) ln(x^4 -1) (dy/dx) / y = (1/4)(4x^3)/(x^4 - 1) dy/dx = (1/4)(y)(4x^3)/(x^4 - 1) or you can replace y with (x^4 - 1)^(1/4) and simplify that a bit since the denominator is x^4 - 1
Monday, May 14, 2012 at 4:15pm by Reiny

logarithmic functions
so the coefficient of a log function are the same as writing it as an exponent of x in the equation: log(subb)x = y ? therefore, Clog(subb)x = y is the same as log(subb)x^(C) = y ?
Thursday, April 7, 2011 at 12:02am by Haley

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