The arithmetic sequence is x - 85 for each one.
170 - 85 = 85
85 - 85 = 0
0 - 85 = -85
and so on
so you subtract 85 each time
hope this helps
        
                    
             
        
        
        
Multiply the first equation by two to get 2x + 2y = 4. 
Subtract the second equation from the first equation to get -3y = -12
y = 4. 
Plug y back in to get x = -2. 
        
                    
             
        
        
        
3 to the power of 5 to the power of 2-3 to the power of 0 is 9 because 3 to the power of 0 is one and 2 minus one is one and 2 to the power of one is two and 3 to the power of 2 is 9
        
             
        
        
        
Answer:
A.y=2x+1
Step-by-step explanation:
y = x+2
This is in the form y= mx+b
where m is the slope and b is the y intercept
m=1  we are doubling it
m=2
The y intercept is 2, we are dividing by 2
2/2 =1
b=1
y = mx+b
y = 2x+1
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Using the product to sum formula
sinxcosy =  [ sin(x + y) + sin(x - y) ] , then
 [ sin(x + y) + sin(x - y) ] , then
2sinxcosy = sin(x + y) + sin(x - y)
Given
2sin75°cos15° ← with x = 75 and y = 15 , then
= sin(75 + 15) + sin(75 - 15)
= sin90° + sin60°
= 1 + 
= 