Question 570883
Try to limit your post to one or two questions; here, you posted two questions that have 10 or 12 parts and most tutors won't solve all of them for you. Plus, you didn't provide a quadratic for #1.


For #2, you can approximate it by adding up each f(n), 0 <= n <= d, where f(n) is the function and d is the last day tickets are sold. However, unless you have a graphing calculator that can do summations, this will be quite a task. Another way to approximate it is to take the integral of f(n):


*[tex \LARGE t  \approx \int_{0}^{d} f(n) dn]


Note the "approximately equal," as the integral assumes f(n) is continuous instead of day-to-day. Only use this method if you know calculus.