
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
November 5th, 2014, 04:41 PM  #1 
Newbie Joined: Oct 2014 From: Canada Posts: 7 Thanks: 0  Evaluating Expressions
Hi everyone, I really need some help evaluating the following expressions. Any help you could offer would be great Also if you could show your steps, so I can learn how to do the problems, that would also be appreciated. Thanks to everyone who helps out. 
November 5th, 2014, 06:43 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,739 Thanks: 1810 
(a). Use the rules that for positive $x$ and $y$ and any logarithmic base, $$\log(x) + \log(y) = \log(xy)\,\text{ and }\log(x^3) = 3\log(x).$$ (b). Multiply the numerator and denominator by 3^16. Multiplying powers of the same integer is done by adding the exponents. Is that sufficient help? 
November 6th, 2014, 04:43 AM  #3 
Senior Member Joined: Nov 2010 From: Indonesia Posts: 2,000 Thanks: 132 Math Focus: Trigonometry 
Also, for log 0.001, just do the mental math: 10 to the power of what will result in 0.001?


Tags 
evaluating, expressions 
Search tags for this page 
Click on a term to search for related topics.

Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Evaluating Expressions  Distributive property  mdocka1  Elementary Math  7  June 11th, 2014 12:37 AM 
Evaluating the sum (2)  Shamieh  Calculus  3  November 17th, 2013 05:44 PM 
Evaluating Integrals  Shamieh  Calculus  2  November 16th, 2013 06:23 PM 
Evaluating cos((7/4) pi)  valerieangel23  Algebra  2  May 28th, 2012 07:43 PM 
evaluating expressions  cafegurl  Linear Algebra  6  February 10th, 2010 12:11 PM 