PLEASE HELP At this point, the plane started descending. As the plan turned, its altitude dropped from 3060 feet to 1650 feet above ground level, calculate the angle of descent if the plane traveled 0.5 miles (c). Note the difference in altitude is 1390 feet

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

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.