(geometry) the midpoint of cd is
e (–1, 0). one endpoint is c (5, 2).
what are the coordinates of the other endpoint?
explain this step by step, i am really struggling i want to learn how to do this for the future.

D(-7,-2)

Step-by-step explanation:

Formula for midpoint:

It is given that the midpoint of CD is E (–1, 0) and the coordinates of C are (5,2).

Let the coordinates of other endpoint are (a,b), then coordinates of E are

It is given that the coordinates of E are (–1, 0).

On comparing both sides we get

The value of a is -7.

The value of b is -2.

Therefore the coordinates of the other endpoint are D(-7,-2).

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)