1/12 because first u find a common denominator of 12 then you get 9/12 + (-8/12) and then since one is negative and one is positive you have to subtract and you get positive 1/12
7.1 degrees.
5.7-(-1.4)
5.7+1.4= 7.1
Hope I helped!
First angle 90 degrees
Second angle 30 degrees
Third angle 60 degrees
Answer:
Step-by-step explanation:
21
