SOLUTION: Hello, I need help with this problem:
Solve logarithmic equation log(3x+15)=2 and write 5 lnx + 1/2 lny - 4 lnz as a single logarithm.
Thank you very much.
Algebra.Com
Question 454991: Hello, I need help with this problem:
Solve logarithmic equation log(3x+15)=2 and write 5 lnx + 1/2 lny - 4 lnz as a single logarithm.
Thank you very much.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Solve logarithmic equation log(3x+15)=2 and write 5 lnx + 1/2 lny - 4 lnz as a single logarithm.
.
log(3x+15)=2
(3x+15)= 10^2
3x+15= 100
3x = 85
x = 85/3 (exact answer)
x = 28.33 (approx decimal answer)
.
5 lnx + 1/2 lny - 4 lnz
lnx^5 + lny^(1/2) - lnz^4
ln x^5y^(1/2) - lnz^4
ln x^5y^(1/2)/z^4
RELATED QUESTIONS
I have two questions I need help with 1) how do I solve 5^2x-1=169. this is part of the... (answered by solver91311)
Write as a single logarithm.... (answered by jim_thompson5910)
I need to write this problem as a single log:... (answered by erica65404)
write 1/2[lnx+ln(x+2)]-2ln(x-5)as a single logarithmic... (answered by jsmallt9)
express single logarithm... (answered by Fombitz)
Express as a single logarithm
a. 2(ln9+lny) + 4lnx - 3lny
b. 2lny -4(lnx + 2lny) +... (answered by stanbon)
Hello all,
I need help to write the equation in logarithmic form !!
(1/5)^-6 =... (answered by Nate)
Hello! I need help solving 2 equations involving Logarithms.
How do I correctly graph... (answered by lwsshak3)
Hello, i just need a little help on a logarithmic problem. I am unawre of the difference... (answered by jim_thompson5910)