Look at the picture.
Definitions:

We have:
and Quadrant II (x < 0, y > 0)
Therefore x=-3 and y = 2. Calculate r:

Substitute to the formula of cosine:

Answer: a.
The answer is 10
This is because both points have the same x value, which is 2, which means the distance between them is a straight line. That means that we can simply find the distance between the y values, and -4 to 0 is 4 units, and 0 to 6 is 6 units, so 4 + 6 = 10.
I hope this helps!
Answer:
False
Step-by-step explanation:
11.05 inches.
EXPLANATION:
Firstly, lets see the unit rate for how many inches per minute.
5.2 divided by 8 is 0.65 inches every minute.
Now since there is 17 mins, simply do 0.65 inches per min x 17 mins.
11.05 inches.
Hope this helps!