1150, i’m pretty sure that’s it!
        
             
        
        
        
Solution: The missing reason in Step 8 is substitution of  .
.
Explanation:
The given steps are used to prove the formula for law of cosines.
From step 5 it is noticed that our equation is
  ..... (1)
      ..... (1)
From step 7 it is noticed that the value of  is
 is  .
.
So by substituting  for
 for  in equation (1) we get the equation of step 8, i.e.,
 in equation (1) we get the equation of step 8, i.e.,

Hence, the missing reason in Step 8 is substitution of  .
.
 
        
                    
             
        
        
        
Alright so if you have a negative number let's say -5 if you put the absolute value symbols around it like so |-5| then it becomes positive. Whatever is in the lines becomes positive, that's why I call it the positive box. It describes the distance of a number on the number line from 0 without considering which direction from zero the number lies. The number is never negative
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
I=PRT where I =interest P=principal, R=rate, and T =time is 
 
        
             
        
        
        
Answer:
x = 76
Step-by-step explanation:
The inscribed angle x is half the measure of its intercepted arc.
x =  × (102 + 50) = 0.5 × 152 = 76
 × (102 + 50) = 0.5 × 152 = 76