In triangle ABC, a = 4, b = 6, and cos C = -1/4. What is the length of side c?

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

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.

What is the area of the triangle 10 13 12