1. urgent urgent algebra / precalculas

    For # 1, im getting stuck on this problem i don't understand this 1.4 = e ^ (0.03k) Now take the natural logarithm of both sides to solve for , ln 1.4 = ln e ^ (0.03k) ln 1.4 = 0.03k * ln e Recall that ln e = 1. ln 1.4 = 0.03 k Solve for k. Then try part
  2. Math Algebra 2

    How do I put log in a TI-84 calculator. #1.Express the logarithm in terms of log2M and log2N: log2(MN)4 #2. Express the logarithm in terms of log2M and log2N: log2 the cube root of M2N #3. Express the logarithm in terms of log2M and log2N: log2 (M/N)7 #4.
  3. Logarithm help

    using logarithms to solve exponential equations. 5^1+x = 2^1-x I need exact numbers. I did one on my own already. 5^x-1 = 9 5^x-1 = 9 log(5^x-1) = log9 (log5)(x-1) = log9 x-1 = (log9/log5) x= (log9/log5)-1 x = 2.3652 Logarithm help - Joe, Friday, September
  4. ALGEBRA

    CONTACT THE EXPRESSIONS.THAT IS USE THE PROPERTIES OF LOGARITHM TO WRITE EACH EXPRESSION AS A SINGLE LOGARITHM WITH A COEFFICIENT OF 1. In 3-2 in 9 + 18 in 3-2 in (9+6) in 3-2 (in 4 + in 8)
  5. math

    use the change-of-base formula to write the given logarithm as a multiple of a common logarithm. In 5
  6. Pre Cal long problem( Can I see the work on this)

    A stuffed animal dealer tells you that a fish he bought for $8 four years ago is now worth $200 follow the steps below to find the effective yield for this investment. Begin with the equation 8(1+r) ^4=200.Solve for (1+r) ^4 Take the common logarithm of
  7. College Algebra

    I am asked to write a logarithmic expresion as a single logarithm with coefficient 1 and simplify as much as possible. The equation is: 4logbase5Y-3logbase5X+1/2logbase5Z. Could some please help me I am not understanding this whole Logarithm thing.
  8. Pre-Calculus 12

    Solve using logarithm: 2^(4x+1)=3^x
  9. algebra

    solve. 3^x+1=4^X+1 its a logarithm
  10. bfmsss

    please I need help i this question.Solve 2*=7 using logarithm tables
  11. Math

    Using logarithm table,solve,0.016*0.084/0.48
  12. Please solve it.Logarithm

    Please help me because I do not any idea in Logarithm topic.Solve for the value of X: 6log(x^2+1)=5
  13. Logarithm help

    use logarithm to solve A car depreciated at 15% per year. How long is it until it is worth half the original value?
  14. Math Help

    Hi! I'm really lost on how to do this. Does anyone know how to solve this? Thanks! :) Condesne the expression to the logarithm of a single quanity. 4(lnz+ln(z+5)]-2ln(z-5)
  15. Math

    Evaluate log(6)√6 (actual question) There's a problem in my book that says: Convert each logarithm to a natural logarithm and evaluate log(5)√288 the answer in the back is 1.7593 but I can't find an example of those kinds.
  16. calculus

    Please help me? ln(x+1)-ln(x-2)=ln(5) 1. Solve equation by setting up algebraically. 2. Use appropriate properties of Logarithm to reduce the number of logarithmic terms to only one. 3. Solve logarithmic equation.
  17. Math (Calculus)

    Can somebody solve this logarithm problem step by step for me please: 2(lnx)² + lnx-1 = 0 First let y = ln x be a new variable, , and solve the polynomial 2 y^2 + y - 1 = 0 2(y +1)(y - 1/2) = 0 Solutions are y = -1 or +1/2 Thus x = e^y and x= 1/e =
  18. Algebre

    Please help I don't understand Contract the expression this is use properties of logarithm to write each expression as a single logarithm with a coefficient of 1. In3-3 In 9 +In 18 In3-2 in (9=6) In 3-2 (In 4 In 8) Thank you so much
  19. pre-calculus

    given that c is the logarithm of x in base a, and d is the logarithm of x in base b, find the general statement that expresses the log of x in base ab, in terms of c and d. [*subscripts not included: a,b,ab] loga_x=c ; logb_x=d ...logab_x = [in terms of c
  20. math

    given that c is the logarithm of x in base a, and d is the logarithm of x in base b, find the general statement that expresses the log of x ib base ab, in terms of c and d. I couldn't include subscripts, but here are what the logs should look like:
  21. Chemistry

    2. What is pH? A.) the negative logarithm of the hydrogen ion concentration B.) the positive logarithm of the hydrogen ion concentration C.) the negative logarithm of the hydroxide ion concentration D.) the positive logarithm of the hydroxide ion
  22. Math Algebra 2

    #4. Express the logarithm in terms of log2M and log2N: log2 1/MN #5. Simplify: log4 3 - log4 48 #6. Solve the equation: loga x = 3/2loga 9 + loga 2 #7. Solve the equation: logb (x2 + 7) = 2/3logb 64 #8. Solve the equation: loga (3x + 5) - loga (x - 5) =
  23. Advanced Functions/ Precalculus Log

    1. Evaluate 4^(log base4 64) + 10^(log100) 2. Write 1+log(base2)x^3 as a single logarithm 3. Write log(base b)√(x^3 y z^6) 4. Solve log(base 2)x-log(base 2)6=log(base 2)5+2log(base 2)3 5. Solve 3^(2x) = 9(81^x) 6. Solve 3^(2x)=7^(3x-1). Round answer to
  24. math

    if y is equal to the logarithm of x to the base 5, what is the logarithm of x to the base 25 in terms of y?
  25. Trigonometry

    Solve for x to the nearest hundreth and can you explain how you get your answer I don't understand 3^x = 1.295 Your question has nothing to do with trigonometry. You can solve for x by taking the logarithm (to any base) of both sides of the equation. Then
  26. Precalculus

    1. Write the given expression as a single logarithm. log(70x)+log(10y)-2 2. Write the given expression as a single logarithm. ln7e/(square root 2x)-ln(square root 2ex) 3. Write the given expression as a single logarithm. -2Ln(x)+Ln(4y)-Ln(5z)
  27. calculus

    Please help me solve this equation. log[2](3)+log[2](x)=log[2](5)+log[2](x-2) 1. Solve equation by setting up algebraically. 2. Use appropriate properties of Logarithm to reduce the number of logarithmic terms to only one. 3. Solve logarithmic equation.
  28. Algebra-Did I even begin correctly?

    How would I write log(6)27-2log(6)3 as a single logarithm Would I start by getting rid of the (-2)- I know its the same log6 but what would I do with the 27 and the 3 I'm really confused on this one and I have to solve several similar ones with no clue on
  29. logarithms

    Solve the logarithm equation. Express the solution in exact form only. log[6](64x^3+1)-log[6](4x+1)=1
  30. college algebra

    solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
  31. precalculus

    solve the logarithm equation show work. log_7(x-8)- log_7(x-2)=1
  32. math

    Use the rule of Logarithm, then solve for x Log 2x+1 - log (x+5)=0 x=4 *I know x equals for can you explain how?
  33. college alg

    solve the following logarithm equation log (4x+7)=1+log(x-6) x=? please show work
  34. Algebra 2

    Can someone help me solve this problem please? The directions are to simplify the logarithm: log5(a + 2) + log5(a – 2)
  35. Physics

    The following circuits represent a logarithm amplifier The output voltage for a log amp with a diode can be determined by the formula below Vout = -(.025V)ln(Vin/IR*R1) , the ln is the natural logarithm of a number. Calculate in a table and sketch the
  36. math

    how do i solve this logarithm log(base 9)X + 3log(base 3)X = 14
  37. Chem

    Look on your calculator. You know the definition of pH. It is pH=-log(H^+). Well, we have the same thing in pKa, pKb, pOH, pKw, etc etc. pKsp = -log Ksp. Punch 57.685 into the calculator. Now change the sign to make it negative. Now look for a button that
  38. algebra

    solve the logarithm log_2 (x -1)- log_2(5x +1) = -3 I got -3, is this correct???????
  39. Pre-Calculus

    How to solve this problem by using logarithm: David inherits $10000 and invests in a Guaranteed Investment Certificate (GIC) that earns 6%, compounded semi-annually. How long will it take for the GIC to be worth $11000.
  40. Math - Logarithm

    Solve the following logarithm equation. Please show all of your work. log (5 + x) – log(x – 2) = log 2
  41. Urgent math

    i need help with these two homework problems Use the Laws of Logarithms to combine the expression into a single logarithm log2 5 − 5 log2 x + 1/2 log2(x + 1) Solve the logarithmic equation for x log2(x + 2) + log2(x − 1) = 2
  42. 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
  43. Precalculus

    1. Write the given expression as a single logarithm. log(70x)+log(10y)-2 2. Simplify the expression. (Do not use mixed numbers in your answer.) (5x^7/8)(2y^4/6)(x^9/8)(4y^-2/6) 3. Write the given expression as a single logarithm. -2Ln(x)+Ln(4y)-Ln(5z) 4.
  44. Math - Logarithms

    Write the following expression as a single logarithm: 4ln2x + ln(6/x) - 2ln2x So I did... 4ln2x + ln(6/x) - 2ln2x = ln2x^4 + ln(6/x) - ln2x^2 = ln16x^4 + ln(6/x) - ln4x^2 = ln16x^(2)(2) + ln(6/x) - ln4x^2 = 2ln16x^2 + ln6 - lnx - ln4x^2 If my calculations
  45. Pre-Calculus - Reiny

    Reiny you helped me with this logarithm yesterday: How did you write it out as log2 ( √A / B^3 ) Laws of logarithms combine, write as a single logarithm Need help on this question please, Im stuck, don't know where to go abouts from here: I did it on
  46. Calculus

    Given y=log(x), what is dy/dx? If you have to derive this from first principles, then you have to use the defintion of the Logarithm. E.g. you could use that the Logarithm is the inverse of the exponential function and that the derivative of the
  47. college algebra

    write the expression as a single logarithm 1. In(x/x*2)+In(x+2/x)-In(x^2-4) solve the following logarithmic equation. 2. log_9(x-2)+log_9(x+1)=2 what is the exact solution? What is the decimal approximation for the solution when rounded three decimal
  48. Logarithms

    e^x+2=13 solve by logarithm Take the ln of both sides. x*ln e = ln 13. You can do this on your calculator. If you don't know the value of e, go to www.google.com and type in e and search. The value is about 2.7. or type this in the google search window
  49. PreCalculus - Need help, due tonight

    1. Rewrite the expression 1/2ln(x – 6) + 3ln(x +1) as a single logarithm. 2. Rewrite the expression 1/3[ln x – 2ln(1 – x)] as a single logarithm.
  50. math

    what is the natural logarithm of (4x-1)=36
  51. math

    logarithm base 20 of 39
  52. Math

    Simplify the logarithm. Log10 10-3
  53. 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
  54. Math

    Write this equation as a logarithm of a power: w ln 4
  55. Math

    logarithm of number less than one 0.016*0.084/0.48
  56. alg

    evaluate the logarithm log 5 1/625
  57. math: pre-calculus

    Write the expression as a single logarithm. Ln(e^3y)+ln(ey)-4
  58. Math

    Evaluate the logarithm log3 729
  59. Cal

    Express the given quantity in a single logarithm. ln(a + b) + ln(a - b) - 2 ln c
  60. College Algebra

    Write each of the following as a single logarithm (log (x+3))/(3) = 1
  61. algebra

    Writ the equation in Logarithm form 25=(1/5)^2 a=b^c
  62. 12 Math

    Evaluate each logarithm. log^2(subscript)36^3
  63. Algebra

    Express as a single logarithm and, if possible, simplify: In x^2 + 3In x-In x^8 Thanks so much
  64. math condense logs

    write the expression as the logarithm of a single quantity 3[ln x-2 ln(x^2+1)]+2 ln 5
  65. Algebra 2

    Can In 5 + log2 10 be written as a single logarithm? Explain.
  66. math

    okay, this i cannot figure out anywhere. 2[ln(x)-ln(x+1)-ln(x-1)] evaluate into logarithm of a single quantity.
  67. Calculus

    express the given quantity as a single logarithm: ln(a+b)+ln(a-b)-8ln(c)
  68. Algebra

    Write the logarithm in expanded form. log2(y^5)
  69. algebra

    Write the expression in a single natural logarithm. 3 ln a - 0.5 (ln b + ln c^2)
  70. College Algebra

    Write each of the following as a single logarithm: 8) ((5-log x)/4) + 4log y =
  71. pre calculus

    Write the expression below as a single logarithm. 2in(x+4)-in((x^(2)+x-12)/(x))
  72. Pre-Calculus 12

    Write the following expression as a single logarithm: 4 log 3 + 2
  73. calculus

    Express the given quantity as a single logarithm. 1/3ln(x + 2)3 + 1/2[ln(x)− ln(x^2+3x+2)^2]
  74. Calculus

    Write the logarithm of a single quantity: 2ln(x)+ln(4)-(1/2)ln(9)
  75. lograithm

    find the logarithm off 1782 to the base 2root3
  76. math

    express log2+log3 as a single logarithm
  77. pre calculus

    Write the expression below as a single logarithm. Need to know how to work this! ln(x-5/x^2 - 1) - ln (x^2 - 2x -15/x + 1)
  78. Calculus

    Write the expression as the logarithm of a single quantity. ln 2 + 1/2 ln(x +1)-2 ln(1+ x^(1/2))
  79. Precalc

    chande into a single logarithm (1/2)ln(x^(2)+1)-4ln(1/2)-((1/2)[ln(x-4)+lnx] ) steps to please
  80. math

    Logarithm 3^3x+1=3^5x-2 3^3x+1-3^5x-2=0 Log(3^3x+1-3^5x-2)=log0 Please explain to me why is the last step is wrong
  81. math

    Estimate the value of the logarithm to the nearest tenth. log7 (55) Options --------- A. 0.5 B. 2.1 C. -2.6 6.0
  82. pre-calculus

    write the expression as a simple logarithm. express powers. In(x/x-5)+In(x+5/x)-In(x^2-25)
  83. calculus

    Express as a single logarithm ln(a)+1/2ln(b) 2ln4-ln2
  84. advanced math

    Math the equation a single logarithm. Express as factors. ln(x/(x-1))+ln((x+1)/(x))-ln(x^2-1)
  85. Math - Write expression as single logarithm

    Write the expression below as a single logarithm. Please show all of your work. ln((x^2 – 1)/(x^2 – 6x + 8)) – ln((x+1)/(x+2))
  86. Calc

    express 3ln(r)- 5ln(s)+ 7ln (t) as a single logarithm.
  87. calculus

    Express as a single logarithm ln(a)+1/2ln(b) 2ln4-ln2
  88. Math (Condensing logarithmic expression)

    Write the expression as the logarithm of a single quantity 3[(ln x) -2ln(x^2+1)]+2 ln 5?
  89. precalculas

    write as a single logarithm 2IN plus In y munus In2y
  90. logarithms

    how to wirte 3log(s)-4log(c)+2log(t-4) as a single logarithm. Thanks
  91. College math

    Express the following in terms of Sum(or differnece) of logarithm's: log sub-b T^5 W^2 Z
  92. algebra

    Simplify the logarithm log2 (64). Select the correct solution.
  93. math

    express the following as a single logarithm log2+log3+log4
  94. algebra

    Use the definition of logarithm to simply each expression log lower 10 ^10-4
  95. Math 10

    Express as sum or difference of logarithm log of x(3x-5) to the base of 4
  96. college algebra

    write the expression as a single logarithm In(x/x-2)+In(x+2/x)-In(x^2-4) Please show work
  97. Calculus

    Why can't a equal 1 in y=log(base a) x. And why is x always positive in that? Hmmmm. a^y=x (from the problem statement). If a were to equal 1, then x would be 1 (1 to any power is 1). So if a is not one, but a positive number, then x has to be a positive
  98. MATH HELP!

    i have write the equation as a single logarithm 2 lnx-3 lny+1/2 lnz
  99. trigonometry

    how can i find the anti-logarithm of this number. 5.07843058944 it should be 59477.5 can show me how.
  100. math

    How would you condense a logarithm expression into a single quantity if the logs have different bases?