Answer:
D. An example that shows a statement is not true.
Step-by-step explanation:
Answer:

Step-by-step explanation:
The identity you will use is:

So,


Now, using the difference of sin
Note: state that 

Solving the difference of sin:



Then,

Once

And,



Therefore,

7 x 500,000 = 3,500,000.
The towns are 3,500,000 units apart (I don't know what the cm were scale too, sorry.)
the distance between cd rounded to the nearest tenth is ≈ 7
3x^2 * 4x^3 = 12x^5
Answer is degree 5