Stonehenge 2 in hunt , texas , is a scale model of the ancient construction in wiltshire, england. the scale of the model to the original is 3 to 5. the altar stone of the original construction is 4.9 meters tall. write and solve a proportion to find the height of the model of the altar stone.

Match each expression with its simplified form.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.