Answer:
A and D
Step-by-step explanation:
I guess it depends on what kind of math you're doing but in general I would say these two at least. No matter what kind of math you're doing you should always double check your answer and make sure it has the correct units with it.
A and B and E
because u always double check
sinx = a/b
tanx= a/c
cosx= c/b
t = -0.9
-1(t+8) = -7.1
(t+8) = 7.1
