For each two-population system in 26 through 34, first describe the type of x- and y-populations involved (exponential or logistic) and the nature of their interaction competition, cooperation, or predation. Then find and characterize the systems critical points (as to type and stability). Determine what nonzero x- and y-populations can coexist. Finally, construct a phase plane portrait that enables you to describe the long-term behavior of the two populations in terms of their initial populations x.0/ and y.0/. dx/dt = 30x 2x2 xy, dy dt = 20y 4y2 C 2xy 6

Koshar Amy Brogan March 28,30 & April 1, 2016 Apportionment Part 3 Review: Spread 10 calculators among 4 classes by population using the following methods. Class A: 87 Class B: 45 Class C: 96 Class D: 62 Hamilton Method Class A Class B Class...