Lines cd and ce are tangent to circle a.
if m DAE= 140, what is the measure of DCE?

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.

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth

Either enter an exact answer in terms of \piπ or use 3.143.14 for \piπ and enter your answer as a decimal.