Your exponential growth formula, P(t) = A e^(kt), contains two unknown constants, A and k. Once you find them, you can find the population for any t. (I assume, t is measured in years.) From your "story", you have:
<span>72 million = P(1992) = A e^(1992 k) </span>
<span>76 million = P(1998) = A e^(1998 k) </span>
<span>From these two equations, you can find the two unknowns A and k (do it yourself). Once you do, your answer is </span>
<span>P(2012) = A e^(2012 k)</span>
You have to write it as (x,y)
Formula
2*(L + W) = L * W
Given
W = 3
Solution
2*(L + 3) = 3*L
2L+ 6 = 3L Subtract 2L from both sides
2L - 2L + 6 = 3L - 2L combine
6 = L
Answer: The length is 6 units long.
which one do you need help with?
