Simplify. 3 4 −4z+ 5 4 z− 1 2 + 1 2 z

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120

Find a parametrization for the curve「and determine the work done on a particle moving along γ in r3 through the force field f: r^3--r^3'where f(x,y,z) = (1,-x,z) and (a) im (γ) is the line segment from (0,0,0) to (1,2,1) (b) im (γ) is the polygonal curve with successive vertices (1,0,0), (0,1,1), and (2,2,2) (c) im (γ) is the unit circle in the plane z = 1 with center (0,0,1) beginning and ending at (1,0,1), and starting towards (0,1,1)

What is the approximate value of the correlation coefficient for the given graph? a. 1 b. 5 c. 3 d. -1