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I’m going to go with 77 i’m pretty sure
        
             
        
        
        
Answer:
cosR = 
Step-by-step explanation:
assuming the right triangle has ∠ Q = 90° with legs 5 and 12
then this is a 5- 12- 13 right triangle with hypotenuse PR = 13 cm
then
cosR =  =
 =  =
 = 
 
        
             
        
        
        
Parallel has same slope = -1/11
answer is B. -1/11
        
             
        
        
        
Answer:
Slope = 4/3
Step-by-step explanation:
Formula for slope-intercept form: y=mx + b
Given: 3y - 4x = -6
Add -4x to the right hand side to isolate out 3y (y).
It should look like this: 3y = 4x -6 
Now divide both sides by 3. 
You should get: y = 4/3x -2
Since it's asking for slope, your slope is 4/3.