Number 7 is C because all of them are less than 1/2 or 0.50
        
                    
             
        
        
        
Zero.
Anything times zero is zero.
-20 * -10 = 200
200 * -1 = -200
-200 * 0 = 0
        
                    
             
        
        
        
We are given 
△ABC, m∠A=60° m∠C=45°, AB=8
Firstly, we will find all angles and sides 
Calculation of angle B:
we know that sum of all angles is 180
m∠A+ m∠B+m∠C=180
we can plug values
60°+ m∠B+45°=180
m∠B=75°
Calculation of BC:
we can use law of sines

now, we can plug values



Calculation of AC:

now, we can plug values



Perimeter:

we can plug values


Area:
we can use formula 

now, we can plug values

 ...............Answer
...............Answer
 
        
                    
             
        
        
        
Answer:
4 seconds after- 
Step-by-step explanation:
i just took the test.