I need help answering #12. Please let me know if you need any other information.

For question #9

(d/dt)Ae?ter^(30-t)=0

r=?/2?t

t= (?/2r)²

Mathematical Methods for Economics Project Problem: When to Sell the Basketball Signed by Kobe Bryant? A seller in ebay has a rare basketball, which was used in 2012 London Olympics and was signed by the basketball giant, Kobe Bryant. The seller is trying to decide when to sell it, and he is asking for 980 USD at this stage. He knows its value will grow over time, but he could sell it and invest the money in a bank account, and the value of the money would also grow over time due to interest. The question is: when should the seller sell the basketball? Experience suggests to the seller that over time, the value of the basketball, like many other collectibles, will grow in a way consistent with the following model: V (t) = Aevt where A and 0 are constants, and V(t) is the value of the basketball in dollars at the time t years after the present time. . 1. Plot this function against t when A = 980 and 0 = 0.5. . 2. What is the interpretation of A? . 3. Plot the function V(t) for several different values of 0. What effect does 0 have on the value of the basketball over time? ebay topay . Search. All Categories Search