Answer:
This is a function, because for every x-value, there is exactly one y-value.
The domain is: {-5, -4, -3, -2}, and the range is {-2, -1, 0}
Let me know if this helps!
 
        
             
        
        
        
Answer:
The  Pythagorean identity states that

Using that we can rewrite the left denominator as:

Which can be factored as

The numerator we can expand as:

On the right hand side, let's multply numerator and denominator with (1 - sin t):
The total formula then becomes:

There you go... left and right are equal.
 
        
                    
             
        
        
        
Answer:
a = 2b/3−1/3
Step-by-step explanation:
...........
 
        
             
        
        
        
Answer:
8
Step-by-step explanation:
140-122=18
18-10=8
 
        
                    
             
        
        
        
1.5 = 1 1/2 = 3/2
When there is a negative exponent, you find the reciprocal of the base, so therefore: 3/2 ^ -2 = 2/3 ^ 2 
Then you square the numerator, then square the denominator: 2^2/3^2 = 4/9