A circular mirror has a diameter of 12 inches. A circular frame that is 3 inches wide surrounds the mirror. What is the combined area, in square inches, of the circular mirror and the frame

Step-by-step explanation:

The equation to use to find the radius of a circle is

The equation to use to find the area of a circle is

First, add inches to the diameter of inches. You will get inches.

Second, you will want to find the radius. Substitute for . Solve to get the radius.

The radius is inches.

Next, you substitute for in the area equation. Solve to get the area.

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step-by-step explanation:

do 6-10=

if u need it to be negative.

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