Answer:
r = - 3
Step-by-step explanation:
Given
40 = 16 - 8r ( subtract 16 from both sides )
24 = - 8r ( divide both sides by - 8 )
- 3 = r
I think 5 is the answer not sure though
SOH CAH TOA
sin(P) = opp./hyp. = 5/13
tan(T) = opp./adj. = 12/5
cos(T) = adj./hyp. = 5/13
The answer would be -16/15 and as a decimal it would be -1.06
