victoria has $1.90 worth of nickels and dimes. she has 2 more buckled then dimes. write a system of equations that could be used to determine the number of nickels and the number of dimes victoria has. define the variables that you use to write the system.

Find the measures of the complement and the supplement of each angle, m

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.

Prove that quadrilateral is a rhombus.