Tuesday

September 30, 2014

September 30, 2014

Posted by **Mike** on Monday, December 1, 2008 at 10:40pm.

2e^5x = 712

log5 80= the five is little next to the log

and 2logx=log(6x-90)+1

thanks I would really appriciate it if you could help me out

- Math -
**drwls**, Monday, December 1, 2008 at 11:00pmYou need a pocket calculator or function table to get numerical answers.

2e^(5x) = 712

e^(5x) = 356

5x = ln 356 = 5.8749

x = 1.17499

log(5) 80 = x

5^x = 80

x log 5 = log 80 (any base)

x = 2.7227

log [(6x-90)/x^2] = -1

You need to specify the log base. If the log base is 10

[(6x-90)/x^2] = 0.1

If the log base is e, 1/e goes on the right side.

**Answer this Question**

**Related Questions**

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

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

math - Logarithm!!! Select all of the following that are true statements: (a) ...

Math Help Please - Which of the following expressions is equal to log (x sqrt-y...

Math - solve log(7x-3)+2log(5)=2+log(x+3) I've attempted to do this question ...

Algebra 2 once more - I have more answers that I would like checked. Also, there...

math retry 2 - 8^x = 16^x+2, x+2 -2=0 8^x =16^x+2, 2 x 8 = 16 log sub 5 (2x+3)=2...

math - how do i solve for x when x = log(32.5)? here's my work: log x = y 10^y...

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

Advanced Functions/ Precalculus Log - 1. Evaluate 4^(log base4 64) + 10^(log100...