Answer:
cos B = 8/17
Step-by-step explanation:
The cosine function is defined as (adjacent side) / (hypotenuse), and in this case is 8/17.
Answer:
b
Step-by-step explanation:
i dont kno lol
Answer:
C, 
Step-by-step explanation:
, is a horizontal line, which makes it vertical to the y-axis
Answer:
-3
Step-by-step explanation:
x - 4 = - 7
Carry over the - 4 and make x the subject.
x= - 7 + 4
x= - 3
Therefore x is - 3
