A box contains 2 white ball,3 black ball and 4 red ball in how many ways can3 ball be draw form the box ,if at least one black ball is to be included in the draw?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.