1. If the product of these integers is to be 1, then all of them must be either 1 or -1. 
2. Since the product is positive (+1), it must be that there are an *even* number of negative ones (-1), if any. 
3. If the sum were 0 it would mean that the number of +1's must equal the number of -1's. So that means there would have to be exactly 22/2=11 of each. 
4. But if there were 11 of each, that means the number of -1's would be *odd* and there's no way the product could be +1 (as stated in 2 above).
Hence, the sum is never 0, if the product of 22 integers is equal +1. 
 
        
                    
             
        
        
        
Answer:what is the question
Step-by-step explanation:
 
        
             
        
        
        
Answer:
3
Step-by-step explanation:
Parallel lines have the same slope
So if line Q has a slope of 3
Line R which is parallel to Q must have a slope of 3
 
        
                    
             
        
        
        
Answer:
x = 76.9
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
tan theta = opp side / adj side
tan 70 = x/28
28 tan 70 = x
x=76.92936
Rounding to the nearest tenth
x = 76.9
 
        
                    
             
        
        
        
Answer:
A
Step-by-step explanation:
hope this helped!