A tractor is moving at a rate of 12 ft/s away from a building which is 90 ft high. How fast is the distance between the tractor and the top of the building increasing when the tractor is 120 ft away from the base of the building

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.

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?

What else equals 42 and 30 for multiply