Given:
A diagram of a circle O,
.
To find:
The measure of arc DC.
Solution:
According to the angle of intersecting chords theorem:
Angle at intersection of chords = Half of the sum of intercepted arcs.
Let
be the angle between the intersection of chords AC and BD.
(Linear pair)

Using the angle of intersecting chords theorem, we get



On simplification, we get



Divide both sides by 2.

Now,



Therefore, the correct option is C.
Answer:
1/3 or .3333333.....
Step-by-step explanation:
Answer:
It depends on what you are asked to do. See explanation.
Step-by-step explanation:
The height, h metres, of a particle at time, t seconds is given by the function:
h=(14-t)(t-2).
This means that after a given time, we can use this function to find the height of the particle.
For instance after 3 seconds, the height of the particle will be:

This implies that:

So after 3 seconds the height of the particle is 11 meters.
Answer:

Step-by-step explanation:

Lets expand it.

Lets re-arrange it.


Lets take (x - y) common.
![= > (x - y)[(x + y) + 1]](https://tex.z-dn.net/?f=%20%3D%20%3E%20%28x%20-%20y%29%5B%28x%20%2B%20y%29%20%2B%201%5D%20)
