I know the formula for these in the terms of P(t)=Po^ekt
Maybe "P(t) = P0
e^(kt)"? And that's just for exponential growth.
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.
This isn't exponential growth, so the formula is different.
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
Now subtract the 51.42, divide through by the 15.473, and then raise both sides as powers
of 10. Simplify to get the answer.
2. The age in years of a female blue whale is approximated by t=-2.57ln(87-L/63)
a) How old is a female whale that measures 80 feet?
Plug "80" in for "L", and simplify to get the answer for "t".
b)What is the length of a female blue whale that is 4 years old?
Plug "4" in for "t", and solve to get the answer for "L".