Which one of the following data sets has more than one mode?
A. {10, 20, 30, 30, 40, 50, 50}
B. {10, 20, 30, 40, 50, 70, 70}
C. {20, 20, 30, 30, 30, 40, 40}
D. {10, 20, 30, 40, 50, 60, 70}

Which statements about these triangles is true

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

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)