Acow is tethered by a 100-ft rope to the inside corner of an l-shaped building, as show in the figure. find the area that the cow can graze.
a. 20
b. 50
c. 100
d. 60
e. 50

Which of the following is a geometric sequence? a. 5, 12, 17, 29, 46 b. 3, 7, 11, 15, 19 c. 4, 6, 10, 16, 26 d. 4, 16, 64, 256

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 random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x