Step-by-step explanation:
Cos(-x) = cos(x)
Therefore, cos(-x)= -0.65
Answer:

Step-by-step explanation:
We are finding the equation of the line that coincide with line segment AB.
So, we can find the equation by using points A and B.

Slope of line (m) = 
Since slope = 0, therefore the line is parallel to x-axis.
The equation of line is given by 
where
is slope and
is y-intercept.
So equation of line AB:
where
and 



If the entire ray is PQ, then all of those points lie on the ray.
<span>25 is 50% of 49.99
..................................</span>
Hello,
Pease, see the attached file.
Thanks.