Answer:The answer is B
Step-by-step explanation:I divided 300 by 5 then added the answer to itself
300/5=60
60+60=120
Not going to do (1), (2), (3) since they are implicit from (a) and (b) and require graphs (which aren't supported on brainly).
We have
, that means, if plug in
we get
.
Doman of cosine is
.
Hope this helps.
Answer:
D. y = -x^2 + 1
Step-by-step explanation:
the answer to the problem is c