Math

If ln a=2, ln b=3, and ln c=5, evaluate the following:

(a) ln(a^−2/b^4c^−3)=
-.9524
(b) ln(√b^−4*c^1*a^−1)=
-1.739
(c) ln(a^2b^4)/ln(bc)^−2=
42.39
(d) (ln(c^−1))*(ln(a/b^3))^−4=
-.03507
I am getting these answers but the problem gives me an error saying "at least ONE of my answers is incorrect"
I'm not sure how as I used the (ln) rules and broke it apart several times and even plugged it into my calculator and I am getting the same results.

can someone help me or point out what i am doing wrong.
rules:
log(ab)= log a +log b
log (a/b) = log a - log b
log a^b = b log a

  1. 👍 0
  2. 👎 0
  3. 👁 541
  1. (a) ln[c^3 / (a^2 b^4)] = (5 * 3) - [(2 * 2) + (3 * 4)] = -1

    (b) ln[c / (a b^2)] = 5 - [2 + (3 * 2)]

    not sure how you are getting your results
    ... you shouldn't need a calculator
    ... just follow the rules carefully

    1. 👍 0
    2. 👎 1

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    1. what is the solution o 204 - (-36)? A 240** B - 240 C 168 D -168 2. what is the solution of 87 + (-396)? A 183 B -183 ** C 9 D -9 3. Evaluate: -12 x 3 =? A 36 B -36** C 4 D -4 4. Evaluate: -20 ÷ -10 =? A 200 B -200 C 2 **8 D

  2. algebra

    Can someone check my answers it would be much appreciated! 1. Evaluate the linear expression 14x−22 for x=3 A. 64 B.−52 C.20***** D.−5 2. Evaluate the expression mn/m-n for m=−12 and n=6 A.−12 B.12 C.−4***** D.4 3. How

  3. calculus

    1.Evaluate the integral. (Use C for the constant of integration.) integral ln(sqrtx)dx 2. Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the curves about the given axis. y =

  4. pre calc

    evaluate the trigonometric function of the given quadrantal angle. tan 1440° Evaluate without using ratios in reference triangle. sec 3π/4

  1. Calculus

    1. Express the given integral as the limit of a Riemann sum but do not evaluate: integral[0 to 3]((x^3 - 6x)dx) 2.Use the Fundamental Theorem to evaluate integral[0 to 3]((x^3 - 6x)dx).(Your answer must include the

  2. English

    Revise the following sentence to omit personal pronouns. I think it is important for you to evaluate information before it in a paper. It's important to evaluate information before including in your paper. Please check my work.

  3. Calc, Implicit Differentiation

    1) Let x^3 + y^3 = 28. Find y"(x) at the point (3, 1). y"(3)= The correct answer is: -2*3*28 = -168 3x^2 + 3y^2(dx/dy) = 0 6x + 6y(dx/dy) = 0 dx/dy = -6(3)/6(1) = -3 That's as far as i get... i don't even know if that's started

  4. Math. Need help

    1.if g=5 and k=1, evaluate 9+gk a. 13 b. 14 c. 15 d. 16 2.Evaluate a-b^2/b if a = 10 and b = 2. a. 1 b. 3 c. 8 d. 32 3.Evaluate 3xy^2 - y if x = 2 and y = 5. a. 26 b. 30 c. 120 d. 145 4.Evaluate 2d + d^2/3 if d = 6. a. 4 b. 12 c.

  1. ethics

    A coworker calls you at 9 a.m. at work and asks for a favor. He is having trouble this morning and will be an hour late for work. He explains that he has already been late for work twice this month and that a third time will cost

  2. nutriction and wellness

    Using the Dietary Guidelines for Americans, 2005 (particularly chapters 5 through 8) as a reference, evaluate the 3 web-based nutrition sites listed below. Explain why you think the information is accurate or not. Three web-based

  3. Math (Definite Integrals)

    Sketch the region given by the definite integral. Use geometric shapes and formulas to evaluate the integral (a > 0, r > 0). r ∫ sqrt(r^2 - x^2) dx -r While I recognize that this looks similar to a circle function, I'm not sure

  4. math

    what does 40-9 divided by 3x7+5=? Do you mean (40 - 9)/(3*7 + 5) ? If so then evaluate the numerator to get 40-9=31. Then evaluate the denominator to get 3*7+5=26. Then form the fraction using the two results. Was that the

You can view more similar questions or ask a new question.