In an isolated environment, a disease spreads at a rate proportional to the product of the infected and non-infected populations. let i(t) denote the number of infected individuals. suppose that the total population is 2000, the proportionality constant is 0.0003, and that 1% of the population is infected at time t=0. write down the intial value problem and the solution i(t).

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?