Select all the true statements A. Dilutions always increase the length of line segments
B. Dilations take perpendicular like to perpendicular lines
C. Dilations of an angle are congruent to the original angle.
D. Dilations increase the measure of angles
E. Dilations of a triangle are congruent to the original triangle
F. Dilations of a triangle are similar to the original triangle

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.

Evaluate cos2θ for cosθ = square root of 3/2

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.