A community for students.
Here's the question you clicked on:
 0 viewing
lgg23
 5 years ago
Solve for x: (9/7)log base 2 of x = 9
lgg23
 5 years ago
Solve for x: (9/7)log base 2 of x = 9

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0First get the log function by itself: \[\frac {7}{9}*\frac {9}{7} *\log_{2}(x)=\frac{9}{1}*\frac {7}{9}\]

lgg23
 5 years ago
Best ResponseYou've already chosen the best response.0i got it. the answer is 1/128

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Good. Out of curiousity did you use a calculator or convert to base ten logs first?

lgg23
 5 years ago
Best ResponseYou've already chosen the best response.0Since the problem can be translated to \[\log_{2} x^{9/7}=9\]. I changed it to exponential form and got \[2^{9} = x^{9/7}\]

lgg23
 5 years ago
Best ResponseYou've already chosen the best response.0then i got rid of the exponents by raising them to the reciprocal of that 9/7 and got (2^7)=x and simplified

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Very nice  I like your method more. :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Just as it should be solved, exploit those log rules!! ;)
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.