The following table shows the length and width of two rectangles:

length width
rectangle a 3x + 2 2x - 1
rectangle b x + 5 5x - 1

which expression is the result of the perimeter of rectangle b minus the perimeter of rectangle a?
2x + 2
2x + 6
22x + 14
22x + 18

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v

answer: i dont know but if you try hard you will get it right : )

step-by-step explanation: