Answer:
option C. 
Step-by-step explanation:
we have that
The point (-5,-12) belong to the III quadrant
so
The value of the cosine is negative
Applying the Pythagoras Theorem
Find the value of the hypotenuse

The value of cosine of angle θ is the ratio between the side adjacent to angle θ and the hypotenuse

Answer:
2;4;3
Step-by-step explanation:
y=2x²+4x+3
Answer:
Step-by-step explanation:

Step-by-step explanation:
They are equal because when we flip or reflect ABC onto DCB we are going to have the same size and the same shape
Answer:
r>4
Step-by-step explanation:
-3r+5<-7
-3r+5-5 <-7-5
-3r<-12
-3r/3
12/3
r>4