college algebra--I really need help!!

posted by .

solve the following exponential equation. exact answers only.

1-9x 2x
2 = e

I hope that you understand this question. I don't and need some help please. Can you show all answers please.

  • college algebra--I really need help!! -

    Um....where does 1-9x and 2x connect? Are they just separate algebraic expressions? And where does e come into play? Thanks

  • college algebra--I really need help!! -

    Ok, it didn't turn out right. This is the question.

    2 with the 1-9x above the 2 = e with 2x above the e.

    Hope this makes more sense now and you can help me and show me how you came about getting the answers.

    Thanks!!!!

  • college algebra--I really need help!! -

    2^(1-9x) = e^2x ??? is that what you mean?

    if so then

    ln (e^2x) = 2x ln e = 2x
    and
    ln [ 2^(1-9x) ] = (1-9x) ln 2 = .693(1-9x)

    so
    2x = .693 (1-9x)
    2x = .693 - 6.24 x
    8.24 x = .693
    x = .0841

  • college algebra--I really need help!! -

    Yes, thanks. I am not quite sure how to make some of the signs when posting my questions here. I am probably older than most and really trying to learn to post them right. Is there a place that you might can refer me to, so that I can try and learn the right signs and symbols????

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Help! for Chemistry H.W.

    I need help with my chem home work. Please show me the answers because this question is a very confusing question to me. Therefore I really need you to provide the answer to this question please... Question 1: A sample of CO2 gas with …
  2. Algebra-I really need help, please?

    I have to solve sqrt(2x-7) >=5 answers would be x>=16 x>=7/2 7/2<=x<=16 x<=16 I don't get this concept at all and I have 20 of these kinds of problems for homeowrk-can someone direct me how to start or give me an …
  3. Math - Exponential equation

    Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. 5e^(x log(9)) = 11
  4. Math - 2

    Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. (e^(2x) – 10e^x) / 13 = 3
  5. college algebra

    Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. 3^x-70*3^-x=9
  6. College Algebra

    1. Find the domain of the composite function f o g. f(x)= 2/x-3; g(x)= 7/x 2. Solve the following exponential equation. Exact answers only. 2^1-9x = e^2x
  7. college algebra--need help please!!

    solve the following exponential equation. use exact answers only. not sure how to put it into the equation but it is 2 then 1-9x where the 1-9x is above the 2=e2x where the 2x is above the 2. Can someone tell me or explain to me how …
  8. college algbra

    find the domain f(x)=x/x-8,g(x)=-7/x solve the following exponential equation equation exact answers only 3e x-1 = 2+e^x-1
  9. math need help urgent

    find the domain f(x)=x/x-8,g(x)=-7/x solve the following exponential equation equation exact answers only 3e x-1 = 2+e^x-1
  10. math need help urgent

    find the domain f(x)=x/x-8,g(x)=-7/x solve the following exponential equation equation exact answers only 3e x-1 = 2+e^x-1

More Similar Questions