The trick here is to not use sin and cos at all.
The -13/15 is the x coordinate of a line from the origin to the unit circle (the line with angle theta). That happens to be the cos(theta).
The y coordinate is the sin(theta).
You can draw this as a triangle where x^2 + y^2 = 1.
So y = √(1 - (13/15)^2) ≈ 0.49889. But your exact answer should be:
I think it’s about 4.3 mph
Answer:
(n-2)180
Step-by-step explanation:
The solutions are
and 
Explanation:
Given that the sets A and B are independent events and are mutually exclusive events.
We need to determine the value of
and 
<u>The value of </u>
<u>:</u>
Since, the sets A and B are mutually exclusive events, it is impossible for the two events to occur together.
Hence, we have,

Thus, the value of
is 0.
<u>The value of </u>
<u>:</u>
For mutually exclusive events, the value of
is given by the formula,

Substituting the values, we get,


Hence, the value of
is 
Thus, the solutions are
and 
Answer:
C) the mean and median
Explanation:
Mean is affected alot, while the median is some what affected.