1+0,5= ? sometimes I ask

The more we learn, the more we know. The more we know, the more we forget. The more we forget, the less we know. So why are we busy studying?​

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.