Which statement describes the end behavior of the function? f(x)=x^2-100/x^2-3x-4

A. The function approaches 0 as x approaches -∞ and ∞.
B. The function approaches 1 as x approaches -∞ and ∞.
C. The function approaches 5 as x approaches -∞ and ∞.
D. The function approaches 25 as x approaches -∞ and ∞.

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Can someone me and plz do the problem

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.