Find the area of the surface. the part of the surface z = 9 + 5x + 2y2 that lies above the triangle with vertices (0, 0), (0, 1), (2, 1).

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Point r divides in the ratio 1 : 3. if the x-coordinate of r is -1 and the x-coordinate of p is -3, what is the x-coordinate of q? a. b. 3 c. 5 d. 6 e. -9