# math

Given: f(x)=log 5 x what is the value of f(125) and f(1/25)? Totally lost!

I assume you mean f(x) = log (5x), not log 5 * x. If this is the case, then
f(125) = log 600
and
f(1/25) = log (1/5)
If the base of the logs is 10, then
log 600 = 2.778..

1. 👍 0
2. 👎 0
3. 👁 105

## Similar Questions

1. ### Math

Okay so the question is: "Three people are cheering simultaneously. Measured individually, the cheers are 80dB, 80dB, and 50dB. What would the cheering measure totally? Use your knowledge of logarithms to solve." So the formula we

asked by Anonymous on October 16, 2010
2. ### Chemisty

Im totally lost on how to do redox reactions. Can any one show me the steps on how to do MnO4-1 +C7H60 => Mn2 +c7H6O2? im trying to study for a test and im totally lost. thanks in advanced.

asked by Kelly on May 31, 2010
3. ### math

Logarithm!!! Select all of the following that are true statements: (a) log(2x) = log(2) + log(x) (b) log(3x) = 3 log(x) (c) log(12y) = 2 log(2) + log(3y) (d) log(5y) = log(20y) – log(4) (e) log(x) = log(5x) – log(5) (f) ln(25)

asked by Simon on April 16, 2010
4. ### Mathematics

Prove that log a, log ar, log ar^2 is an a.p. Is the following below correct? Log ar^2 - Log ar= Log ar - Log a hence applying laws of logarithm Log(ar^2/ar) = log(ar/a) Log and log cancels out and then cross-multiply hence a^2r^2

asked by Anonymous on July 15, 2009
5. ### Algebra 2

solve for x: 3^2x+3=7^x+1 I did 2x+3=log0f3(7)+ logof3(7) (2-log of 3(7))x=log of 3(7)-3 x=log of 3 (7)+log of 3 (3^-3)/log 0f 3 (3^2)-log of 3 (7) x=log of 3 (7-1/3^3)/log of 3(9/7) log of 3(7/27)/log of 3(9/7) answer log of

asked by sara on March 3, 2019
6. ### HELP!

How many times do I have to tell you the answer is d. Goodness. http://www.jiskha.com/display.cgi?id=1168934037 all you had to do was add two numbers given, and double it, and put the neg sign in front. I have no idea what the

asked by bobpursley on January 16, 2007
7. ### math

write as a single logarithm: -2logbase3(1/x)+(1/3)logbase3(square root of x) please show the steps to solving this. thanx. remember that 1 log (AxB) = log A + Log B (same base) 2 log (A/B) = log A - log B 3 log A^n = n log A use

asked by michelle on February 25, 2007
8. ### Algebra 2 once more

I have more answers that I would like checked. Also, there is one that I'm really confused about. I appreciate any help. :) Rewrite as the log of a single number. 1) 8 ln 2 = ln(2^8) 2) log 42 - log 6 = log 36 (I think this one

asked by Lindsay on May 23, 2007
9. ### Math

What is the real value of x in the equation log(subscript 2)24-log(subscript 2)3=log(subscript 5)x? I really cannot remember at all how logs work. I know the answer is 125 but have no idea how to get there. Thanks in advance.

asked by Natalie on November 17, 2007
10. ### Algebra 2

how do not understand how to do this Log X + Lob (X-3) = 1 I know I do this Log X(X-3)=1 then I do this Log X^(2) - 3X = 1 then I do this 2 Log (X-3X) = 1 then 2 Log (-2X) = 1 then (2 Log (-2X) = 1)(1/2) Log (-2X) = 1/2 then (Log

asked by HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!! on February 25, 2009

More Similar Questions