-5 is the adjacent side, -12 is the opposite side, the hypotenuse is 13
Cos = adjacent/hypotenuse
Cos = -5/13
The answer is C.
There are 6 (five sixteenths) in 1 and (seven eighths)
Equivalent of fractions using decimals
Answer:

Step-by-step explanation:


Combine Like Terms:



Therefore,
will be your final answer.