2. determine whether the given lengths can be sides of a right triangle.
which of the following are true statements?
o
a the lengths 7, 40 and 41 cannot be sides of a right triangle. the
lengths 12, 16, and 20 can be sides of a right triangle.
o
b
the lengths 7, 40 and 41 can be sides of a right triangle. the lengths
12, 16, and 20 can be sides of a right triangle.
c the lengths 7, 40 and 41 cannot be sides of a right triangle. the
lengths 12, 16, and 20 cannot be sides of a right triangle.
od the lengths 7, 40 and 41 can be sides of a right triangle. the lengths
12, 16, and 20 cannot be sides of a right triangle.

point a is the center of this circle.

the ratio of the lengths of (ef/bc) and (ad/ih) is 2: 1.

step-by-step explanation:

sorry, i don't know i just need points, i'm new here. chao

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