Step-by-step explanation:
Here's the first one for ya. I can't tell what the first denominator of the second one is [CosB, CscB, or SecB?], so unless you get back to me on that, then I can't help you with it.
The answer is 2.1 Km. Hope this helps!
Answer:
I believe the second one is d
I think none of these are right. It's Y=-5/3x +4/3
x=−3 and y=5