the length of a spring is a linear function of the massof the object hanging from it for a particular spring the kength wad 12 centimeters when a 2-kg mass was attached to it. when a 5-kg mass was hung from it it streched to a length of 18 cm how much mass must be hung from this spring for it to strech to 25 cm​

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.

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?

The complement of an angle is one-sixth the measure of the supplement of the angle. what is the measure of the complement angle?