- Thu Jul 11, 2013 7:27 pm
- Forum: Advanced Algebra ("pre-calculus")
- Topic: URGENT HELP PLEASE Logarithms Growth and Decay
- Replies:
**3** - Views:
**3331**

Thanks for the help. On the whale question I realize what I should plug in where, my problem is trying to solve it to get the correct answer. I plug the numbers in but do not know how to solve it properly. Does that make sense? t=-2.57ln(87-80/63) t=-2.57ln(7/63) t=5.646 is this correct? 4=-2.57ln(8...

- Thu Jul 11, 2013 5:47 pm
- Forum: Advanced Algebra ("pre-calculus")
- Topic: URGENT HELP PLEASE Logarithms Growth and Decay
- Replies:
**3** - Views:
**3331**

U.S. Census Bureau data shows that the number of families in the United States (in millions) in year x is given by h(x)=51.42+(15.473)*log x, where x = 0 is 1980. b) When will there be 80 million families? I know the answer and how many years time but I need to show work. This is what I have so far ...