Hey there!
The answer is D. 1/5
An explanation is in the attached image below.
Hope this helps!
Answer: not sure how helpful this is, but the second one is correct (if it's the one that's corresponding to the blue line). The pink line, however, is incorrect if it is corresponding to the first equation. The first equation must have a y-intercept of 1.
Step-by-step explanation:
Answer: option a.
Step-by-step explanation:
By definition, we know that:

Substitute
into the first equation, solve for the cosine and simplify. Then, you obtain:

As
then
:

Now we can find
:

I think 13 pounds for extras and all not sure just my thought :)
Answer:
4/5
Step-by-step explanation:
i calculated it