Check the picture below.
make sure your calculator is in Degree mode.
Answer:
Step-by-step explanation:

since we know that
in this expansion is 
thus 
Hope that helps!
Answer:
other
Step-by-step explanation:
you should now this it's too esay in which standard are you. tell in comments
Answer:
20.75
Brainliest answer pls
Step-by-step explanation:
Answer:
slope= -7/4
Step-by-step explanation:
y2-y1/x2-x1
16-9/-3-1