Emmett and Charlotte are both selling cookie dough for a fundraiser. Although Emmett has already sold 2 tubs, Charlotte hasn't sold any yet. If Emmett starts selling 7 tubs per day and
Charlotte begins selling 9 tubs per day, they will eventually sell the same amount of cookie
dough. How many tubs will each sell? How many days will that take?

Find the value of the variable and the length of each secant segment.

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 graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2