I say the answer is d I might be wrong.
Answer:
18 degrees.
Step-by-step explanation:
12 - (-6)
= 12 + 6
= 18.
A is equal to 50 since 50+10=60 and 50-10=40 so that means b=10. a/b would be 50/10 which is equal to 5
Answer:
This will be s - r.
Step-by-step explanation:
Here,
SinB = r
CosB = s
SinB = AC/BC
Also,
CosC = AC/ BC
So, we can say SinB = CosC = r
Again,
CosB = AB/ BC
Also,
SinC = AB/ BC
So,
CosB= SinC = s
So,
SinC - CosC = s - r