Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Mattwatson08

Solve log3x+log9=0. round to nearest hundredth if necessary a..33 b..04 c.3 d.27

  • one year ago
  • one year ago

  • This Question is Closed
  1. freckles
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\log(3x)+\log(9)=0 ?\]

    • one year ago
  2. Mattwatson08
    Best Response
    You've already chosen the best response.
    Medals 0

    how do i solve

    • one year ago
  3. freckles
    Best Response
    You've already chosen the best response.
    Medals 1

    If that is the right expression use that property I mentioned earlier log(a)+log(b)=log(ab) ----------- log(3x)+log(9)=log(3x*9)=log(27x) So you need to solve the following for x: log(27x)=0

    • one year ago
  4. Mattwatson08
    Best Response
    You've already chosen the best response.
    Medals 0

    so multiply log(3*9)

    • one year ago
  5. freckles
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes but you missed the x inside there log(27x)=0 when x= what?

    • one year ago
  6. freckles
    Best Response
    You've already chosen the best response.
    Medals 1

    I assume the base is 10 so we have \[\log_{10}(27x)=0\] Do you know how to solve for x? do 10^ on both sides

    • one year ago
  7. Mattwatson08
    Best Response
    You've already chosen the best response.
    Medals 0

    3

    • one year ago
  8. freckles
    Best Response
    You've already chosen the best response.
    Medals 1

    \[10^{\log _{10}(27x)}=10^0\] \[27x=1\] Can you finish this ?

    • one year ago
  9. Mattwatson08
    Best Response
    You've already chosen the best response.
    Medals 0

    yea

    • one year ago
  10. freckles
    Best Response
    You've already chosen the best response.
    Medals 1

    cool! :)

    • one year ago
    • Attachments:

See more questions >>>

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.