Friday

November 21, 2014

November 21, 2014

Number of results: 269

**trigonometry **

Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=3228'30" Also Give checks. I know the use of logarithms is unnecessary but i have to show my solution by using logarithms and thats the only reason I'm asking for help. ...
*February 24, 2011 by Anon*

**kahyla**

use the properties of logarithms to write the expression as a sum or difference of logarithms or multiples of logarithms. show your work Ln 8x 2. log2y^5
*June 12, 2011 by pre calc*

**trigonometry**

okay so i have this trigonometry problem were i HAVE to use logarithms. Now this is my work but can u help me solve it using logarithms. Find the area of the following triangles:(use logarithms) 1) c=426, A=45degrees 48' 36",and B=61degrees 2' 13"
*February 20, 2011 by anon*

**Logarithms**

solve 6 = 15^1-x by using logarithms. Round your asnwer to the nearest thousandth. PLease help?
*April 20, 2012 by Tabby*

**math**

use the properties of logarithms to write the expression as a sum, difference, and/or constant multiple of logarithms. (Assume all variables are positive.) In 3sqrt t
*July 26, 2009 by Hannah*

**math**

use the properties of logarithms to write the expression as a sum, difference, and/or constant multiple of logarithms. In( x^2 - 1 over x^3) , x is greater than 1 I really do not understand this problem!!
*July 27, 2009 by Hannah*

**Trigonometry (Logarthims) **

Give checks to the following two questions Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=3228'30" without logarithms i can do this problem easily and i have. but when i try solving it with logarithms i keep getting...
*February 24, 2011 by Anon*

**10th grade Math**

In logarithms, my problem is 2log(subscript 3)n + log (sub 3)5. I know how to add logarithms together, but what do I do with the 2 before the first log?
*December 9, 2008 by Grace*

**Math - Properties of Logarithms**

Use properties of logarithms to find the exact value of the expression. (log3(81)^4
*June 6, 2011 by CheezyReezy*

**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
*January 7, 2013 by Heather*

**math**

use the power law of logarithms to verify the product law of logarithms for log10^2
*December 13, 2009 by --*

**Logarithms**

Use the properties of logarithms to find the exact value of the expression log[16]4*log[5]57
*January 1, 2012 by Mc78*

**Logarithms**

What's the fastest way to find Anti Logarithms(not using interpolation or a log table) can anyone give me an example using any kind of value? (preferably solving triangles)
*September 17, 2013 by John*

**Logarithms**

What's the fastest way to find Anti Logarithms(not using interpolation or a log table) can anyone give me an example using any kind of value? (preferably solving triangles)
*September 17, 2013 by John*

**Logarithms**

What's the fastest way to find Anti Logarithms(not using interpolation or a log table) can anyone give me an example using any kind of value? (preferably solving triangles)
*September 17, 2013 by John*

**Logarithms**

What's the best way to find Angles using logarithms and vice-versa. Ex: log cot 0.1690 and log sin (25degrees 22min) log sin (25+22/60) = log sin 22.3666666667 = sin 0.38053243281 = (-0.41960832236) Is there a simpler way to do these? I get confused with finding the angles ...
*September 17, 2013 by John*

**trigonometry**

1. Finde the area of the following tringles: (use Logarithms) A) a=12.7, b=21.5, c=28.6. i'm not of the answer i got. i got 127.6 if you got something different can you show me how you did while using logarithms.
*February 21, 2011 by anon*

**pre calculous**

use the properties of logarithms to write the expression as a sum or difference of logarithms or multiples of logarithms. show your work ln x^2/y^3 Assuming x,y AND z are positive use properties of logariths to write the expression as a single logarithm logx+log y 1/3logx 4 ...
*June 12, 2011 by kevin*

**trigonometry (MathMate)**

MathMate i would really appreciate if you can show me where the logarithms can be used.I know they are unnecessary and I already found the answer without them but i still have to show my work using logarithms and they just confuse me. I also have most trouble woth the anti-...
*February 21, 2011 by anon*

**Algebra 2 logarithms**

Use the properties of logarithms to evaluate the expression. 1. 5^log(7x) 2. 10^x + 2 log(x)=x+2 or log(x)=x-2 ????
*July 14, 2011 by jay*

**exact logarithms **

Use the properties of logarithms to find the exact value of the expression log[16]4*log[5]sqrt7?
*January 1, 2012 by Mc78*

**calculus**

solve the exponential equation. Express the solution in terms of natural logarithms. e^x=9.2 a. whats the solution in terms of natural logarithms? **is the answer e^9.2 or just e^9 b. type a decimal rounded to 3 decimal places.
*January 1, 2013 by Brock*

**trigonometry **

Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=3228'30" I have to use logarithms and law of tangents . and then provide the check. which says law of sine or mollweids equation. I can't us the cosine law. If you ...
*February 26, 2011 by Anon*

**Applied calculas**

1. Consider the function y = xx (for x > 0). a) Why does the derivative rule for xn not apply? b) Why does the derivative rule for ax not apply? c) What are the four magic properties of logarithms? d) Take the ln of both sides. Use the properties of logarithms and implicit ...
*April 8, 2013 by jack*

**applied calculus**

1. Consider the function y = xx (for x> 0). a) Why does the derivative rule for xn not apply? b) Why does the derivative rule for ax not apply? c) What are the four magic properties of logarithms? d) Take the ln of both sides. Use the properties of logarithms and implicit ...
*April 9, 2013 by jack*

**Logarithms**

1. Find the amount of time required for an investment to double at a rate of 12.3% if the interest is compounded continuously. MY ANSWER: 5.635 yrs 2. Solve e^(0.2x) < 21.2 by using natural logarithms. MY ANSWER: X<15.270 3. Convert log(base 5) 47 to a natural logarithm ...
*August 12, 2009 by Jackie*

**trigonometry (repost) Mathmate**

I want to start by saying thank you . You have no idea how much u have helped me understand logarithms, even better then the books i have (it poorly explains the subject of trigonometry let alone logarithms and antilog). Your last explanation was very clear and i even ...
*February 26, 2011 by Anon*

**Math (Logarithms)**

How do u do logarithms where there is a log on one side and a number on the other... Example- -21.044=log(P/30) I dont want just an awnser to the example, i need to know how to do it please... convert your log equation into an exponential equation. -21.044=log(P/30) <...
*May 8, 2007 by Emily*

**Property of logarithms**

Using property of logarithms, how do I prove derivative of ln(kx) is 1/x First observe that ln(kx) = ln(k) + ln(x) then take derivatives. The ln(k) is simply a constant so it goes away. You could also derive it as d/dx ln(kx) = 1/kx * k by the chain rule. To see that the ...
*October 20, 2006 by Jen*

**Algebra-please check my answers**

Solve the equation by expressing each side as a power of the same base and then equating exponents. 9^(x - 9)/8= sqrt of 9 i got 13 4^(x + 10) = 8^(x - 6) i got 38 Solve the exponential equation. Express the solution set in terms of natural logarithms. 2^8x = 4.5 i got {ln 4.5...
*October 26, 2007 by Ang*

**logarithms**

3^x=6
*February 19, 2014 by Mandy*

**algebra**

Logarithms: a)
*March 7, 2007 by Jade*

**Logarithms**

Solve for x: {{{ln(x)+x=5}}}
*April 8, 2011 by Kate*

**Maths**

Logarithms
*November 3, 2013 by Virgie*

**math**

logarithms solve for x 5^(x-1) = 9
*October 5, 2008 by Anonymous*

**algebra logarithms**

log5 x=2
*June 3, 2010 by Nicole*

**Logarithms**

Determine if x=0.6 is a root of 4^(2x)=5
*March 22, 2012 by Labz*

**Math**

I'm doing logarithms. Solve: 2^(6x-1)=28
*March 22, 2012 by Henry*

**Math - Logarithms**

How do you solve 7^(3x) = 8^(2x)
*April 2, 2012 by Labz*

**Logarithms**

Solve 7^3x=623
*October 21, 2012 by Sam*

**Logarithms **

How do you expand ln15x? thanks :)
*February 12, 2013 by Allyson*

**Math**

Given the product law of logarithms, prove the law of exponents. Given the quotient law of logarithms, prove the quotient law of exponents.
*May 23, 2009 by Jus*

**Logarithms**

Can someone explain to me why ln e^5 equals 5?
*January 29, 2008 by Anonymous*

**math**

how do i solve this using logarithms: 1) 4^(x)=8 2) 2^(x) * 8^(-x)= 4^(x)
*November 24, 2008 by kayla*

**MATH - logarithms**

solve for x. 485 * 5^x+2 = 12^2x-1
*December 3, 2009 by Cyn*

**college algebra**

help solve 8=2^5x * 4^x^2 logarithms
*May 2, 2010 by Cindy*

**Algebra Logarithms**

logx+log(x+3)=1
*June 3, 2010 by Nicole*

**algebra II logarithms**

f(x)=log4 (x)+3 how could i get this so i could graph it?
*July 17, 2011 by jay*

**Logarithms**

Solve Log base 10^x=4
*October 21, 2012 by Sam*

**Logarithms**

if loga(b)=1/48 what is the value of logb(a^2) ?
*April 22, 2013 by Tony*

**math- logarithms**

how do i solve these logs? log1/2 (3x+1)^1/3= -2 3^(x^3)= 9^x
*January 8, 2009 by kayla*

**logarithms**

how do i solve: log4x^3 + log2x^1/2 = 8 please help me
*November 8, 2009 by jenny*

**Pre Calculus**

Logarithms Solve the equation for x 1-ln(3x+2)=0
*October 21, 2011 by Josh*

**Algebra**

Can logarithms have negative answers?
*November 15, 2013 by Megan*

**Precalc: Logarithms**

Solve for x? xln(x) + 1 > x + ln(x) e^1/x > 1 Any help would be appreciated. THANK YOU!
*August 3, 2008 by Joe*

**math**

Using logarithms, find w to the nearest hundredth: 5^(2w) +9=40?
*May 18, 2009 by help please*

**math **

how to solve logarithms symbolically? log17(17)^(x+3)= log7(1) thank you
*August 24, 2010 by ellie*

**MATHS**

Evaluate with the help of Logarithms 1) 2391/3072 2.38*3.901/4.83
*May 3, 2011 by sam*

**math**

Apply logarithms to create a linear relationship: ((x^3)(y^1.5))/(z^.5)=k
*May 11, 2011 by sophie*

**algebra II**

use the properties of logarithms for the expression. 5^log5(7x)
*July 17, 2011 by jay*

**Hard math**

Solve for x using the laws of logarithms. ln(ln x)= 1
*October 5, 2011 by Christina*

**math**

Use logarithms to solve expenential equqtion 5^x=30
*December 20, 2011 by ddd*

**math**

Use logarithms to solve expenential equation 5^x=38
*December 20, 2011 by ddd*

**math **

Calculate the expression in common logarithms. log (80)= 6
*June 13, 2012 by Linda*

**Math**

Solve for t using natural logarithms. 7e^3t = 10e^2t
*September 11, 2012 by Emily*

**precal**

how do you find an exponent variable without logarithms? ex. 8.2=1.65(0.8)^n-1 thanks
*October 14, 2012 by Derpy*

**trigonometry (repost) Mathmate**

Use logarithms and the law of tangents to solve the triangle ABC, given that a=21.46 ft, b=46.28 ft, and C=3228'30" Using the previous values, a=21.46 b=46.28 C=32-28-30=32.475 We have A+B=180-32.475=147.525 a+b=67.74 a-b=-24.82 tan((A+B)/2)=3.433633 tan((A-B)/2)=tan((A+B)/2...
*February 27, 2011 by Anon*

**Algebra help**

Express in terms of logarithms of a, b, and c: log(a^3b^2)/c How would I convert this?
*December 1, 2008 by Shawn*

**Algebra Help**

Express in terms of sums and differences of logarithms: log_a x^3 y^2 z
*August 8, 2009 by Rachale*

**Algebra 2**

Find the solution of the exponential form in terms of logarithms 2^(2x+13) = 3^(x-45)
*April 30, 2010 by Andrew*

**algebra 2**

Use the properties of logarithms to evaluate the expression. 5 log5 (7x)
*July 15, 2011 by Anonymous*

**logarithms**

how to wirte 3log(s)-4log(c)+2log(t-4) as a single logarithm. Thanks
*March 4, 2012 by vero*

**Logarithms**

help- e^1-5x=3 find solution to 4 decimal places. I don't know how to type it in to my calculator!
*February 5, 2013 by jennifer*

**Algebra**

Please express in terms of sums and differences in logarithms. log a x^3 y^2 z
*July 28, 2009 by Alicia*

**Math**

I need to solve for t in the following expression. A/(1+B^t/2) = C using logarithms. how do I get started
*October 10, 2010 by Claudia*

**Math**

How would you solve: Ln[e^5x/x(x^4+1)] in a form with no logarithms of products, quotients, or powers?
*November 9, 2010 by Anonymous*

**Logarithms**

log4(10)=x Im having trouble getting started here with this question thanks
*May 24, 2011 by Ashton*

**Algebra 2**

Solve each equation below for x. (Use logarithms.) 10^(2x^(2)-5x+11) = 10000 9^(2(x-1)) = √(27)
*February 19, 2012 by Peter*

**Intermediate Algebra (college)**

Use the properties of logarithms to condense the expression 1/3[ln(x - 6)- 4 ln y - 2 ln z]
*April 26, 2012 by Brittany*

**math30**

LOGARITHMS AND EQUATION SOLVING Solve for x. Round to the nearest hundredth. 2^(x+3) = 17^(x)
*July 18, 2012 by alejandro*

**math**

Is log_3 (5) equal to log_5 (3)? Explain your answer. Do not evaluate the logarithms.
*March 19, 2013 by Hasane*

**College Algebra**

Express as an equivalent expression, using the individual logarithms of w,x,y and z. log a (xy^2z-3)
*February 9, 2010 by Ashley*

**Intermediate Algebra**

Express as an equivalent expression, using the individual logarithms of w, x, y, and z. log(a)(1x^2y^5)
*June 12, 2010 by Amanda*

**calculus**

use the law of logarithms to expand and simplify. ln(e^x)/(1+e^x) Please help, i have no idea..
*May 1, 2011 by kat*

**college algebra**

I need to find out the solution in terms of natural logarithms for this 10^x=2.5
*January 31, 2012 by Betty*

**college algebra**

I need to find out the solution in terms of natural logarithms for this 10^x=2.5
*January 31, 2012 by Betty*

**math:logarithms**

prove that:log25+log8*log16/log64 -log14/5+log28=3
*February 15, 2012 by mohamed sedeeq*

**Math algebra**

Write the following as a sum and/or difference of logarithms log((∛x^2+1)/(x^2-1))
*May 1, 2012 by Josh *

**Algebra 2 **

use the laws of logarithms to expand the following expressions log base 2 of xy
*April 11, 2013 by Anonymous*

**Math- logarithms**

How I find which is larger without using a calculator: log4 17 or log5 24?
*January 12, 2014 by Anonymous*

**Math**

Express the following in term of sum (or difference)of logarithms: log (10A)/(7B^2)
*August 2, 2014 by Tatiana*

**Math**

1. Given the product law of logarithms, prove the product law of exponents. 2. Given the quotient law of logarithms, prove the quotient law of exponents. 3. Apply algebraic reasoning to show that a=b^(loga/logb) for any a,b>0 Please explain these to me. All I know is that ...
*May 25, 2009 by Jus*

**math B-logarithms**

im having a quiz on this tom and i dont understand it at all! Can sum1 explain it to me?
*January 4, 2007 by Mandy*

**Logarithms**

How do I solve this using logs? I am having a total math meltdown tonight! 10=2^10/n Thanks again!
*January 9, 2008 by Math genius! Urgent!*

**college algebra**

help solve 8=2^5x * 4^x^2 logarithms eight equals 2 to the 5x times 4 to the x squared in case I didn't write it correctly.
*May 2, 2010 by Cindy*

**Algebra**

Express as a sum, difference, and product of logarithms, without using exponents log18 7x/y
*June 15, 2010 by Kate Zyla*

**Math**

Solve for x. 14^(-3x)=11^(-x-3) Write the exact answer using base-10 logarithms How do I start this problem? Thank You
*February 16, 2011 by Rachal*

**Calculus**

Solve for x. Don't do the work using algebra and don't use a calculator. The Laws of Logarithms will be helpful. ln(x^2 - 1)= 3
*October 5, 2011 by Angel*

**college algebra**

use properties of logarithms to find the exact value of the expression. sqrtlog81 3
*March 4, 2012 by Tammy*

**Math**

Suppose that ln2=r. Use properties of logarithms to write the logarithm in terms of r. ln32=__
*November 7, 2012 by Jamie*