Monday

September 1, 2014

September 1, 2014

Posted by **Jackie** on Wednesday, August 12, 2009 at 2:32am.

MY ANSWER: 5.635 yrs

2. Solve e^(0.2x) < 21.2 by using natural logarithms.

MY ANSWER: X<15.270

3. Convert log(base 5) 47 to a natural logarithm and evaluate.

My answer: 2.392

4. The pH of a water supply is 7.3. What is the concentration of hydrogen ions in the tested water?

I’m not sure but is it 5.012 x 10^-8

Check my answers?

- Logarithms -
**MathMate**, Wednesday, August 12, 2009 at 8:51amAll good!

**Answer this Question**

**Related Questions**

compound interest - How do I solve these problems? Complete the table for a ...

PreCalc - Find the amount of time required to double a dollar investment at 7.72...

Calculus - Money is deposited in an account for which the interest is compounded...

math - Complete the table for a savings account in which interest is compounded ...

algebra - The amount of money in an account with continuously compounded ...

algebra 2 - The amount of money in an account with continuously compounded ...

math- check my answer - An internet investment company advertises that if you ...

math - The amount of money in an account with continuously compounded interest ...

math - How long will it take for an investment of $13,000 to double if the ...

Calc - How much money will we have in 6 months if we invest $1000 into an ...