NEED HELP ASAP. WILL GIVE BRAINLIEST Let w represent the sum of vectors u and v. Find the magnitude of w and the angle between w and u given the following information: u = 14 |v1 = 16 The angle between u and w is 120°.

The magnitude of w is approximately?

The angle between w and u is approximately?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

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.