Math homework about trigonometry - sine rule.
on a map whose scale is 8 cm to 1 km, an estate is shown as a quadrilateral abcd. the length of the diagonal ac is 7 cm, bâc = 55°, bĉa = 77°, dâc = 90° and dĉa = 40°. (draw the figure)
calculate:
a) the length, in cm, of the side ab on the map;
b) the length, in km, which represented by ad;
c) the area, in km², which represented by δadc.

Ahome improvement store rents it’s delivery truck for $19 for the first 75 minutes and $4.75 for each additional 1/4 hour. if a customer rented the truck at 11: 10 am and returned the truck at 1: 40 pm the same day, what would his rental cost be?

F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)

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.