How to find the arithmrtic mean

  divide the sum by the number of numbers

Step-by-step explanation:

The arithmetic mean of a group of numbers is the quotient of the sum of the numbers and the number of numbers in the group.

For two numbers, the mean is their sum divided by 2:

  mean of A and B is (A+B)/2

For 5 numbers, the mean is their sum divided by 5:

  mean of (A, B, C, D, E) is (A +B +C +D +E)/5

The arithmetic mean is also called the average.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

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