Answer:
3/5
Step-by-step explanation:
cosine is adjacent/hypotenuse
9/20
explanation:
7/10 - 1/4
14/20 - 5/20
14-5/20
9/20
4+5 would be 9 because you add 4 and 5
Answer:
See below, I will let graphing part to yourself.
Step-by-step explanation:
First function: domain:
, range:
, decreasing
Second function: domain:
, range:
, increasing
Third function: domain:
, range:
, increasing