Friday

October 31, 2014

October 31, 2014

Posted by **Lost in Logarithms** on Sunday, April 1, 2007 at 12:55am.

Can anyone explain how to do

3e^(1+x) = 2

AND

10^(2x+3) = 280

If you walk me through one I should be able to figure out the other. Hopefully...

I think you need to go back to one of the log rules:

log[base A](A^n)=n

For example:

log[base10](10^3)=3

similarly

log[base e](e^-x)=-x

Does this help?

Honestly... no X_X. Don't you love college professors who don't /actually/ teach. Thanks for trying. I'm going to try and find someone who can show me.

**Answer this Question**

**Related Questions**

math - solve for x without using a calculator 5^(x+1) = 25 i know that x would ...

Precalculus - This is for solving exponential/logarithmic functions: (This is a ...

algebra - how do I do this Solve for x. 3x – 2y = 6 Add 2y to both sides and ...

Math - The problem 8^x = 16^x+2 the choices a)8 and b)-8. Help please! Given ...

algebra - solve 4^3x-4=32^x+2 Please help! Do you mean 4^(3x) -4 = 32^x +2 ? yes...

algebra solving log equations - n sqrt(x-8)= 5 I would like help to solve this ...

check! - here is the question: log5(x-4)= log7x solve for x. These are just base...

math - Solve each formula for n. 2n = 4xp-6 3m-n=4s r/n+2=p t=100(n+3) pv/nR=T ...

math - the radius of a circle when the numeric values of the circumference and ...

science - i need to rearrange the following equations, to make x the subject . r...