Answer:
y=-4x-7
Step-by-step explanation:
remember the equation y=mx+b, where the slope is the m along with the x because it is an ever changing variable, and b is being the y intercept, that basically gives the answer.
 
        
             
        
        
        
Answer:
8x + (6x + 6) = 90°
x = 6°
Step-by-step explanation:
because it is a right angle, the sum of the angles = 90°
8x + (6x + 6°) = 90°
simplify:
14x + 6° = 90°
subtract 6° from each side:
14x = 84°
divide both sides by 14:
x = 6°
 
        
                    
             
        
        
        
Answer:
10 feet
Step-by-step explanation:
define variables: 
y= height of the boards 
x= distance to corner 
we are trying to figure out what x is since we know the height of the board 
4= 0.4x 
divide both sides by 0.4 
10=x
 
        
             
        
        
        
Answer:
An exponent
Step-by-step explanation: So if we have 83, we want to multiply three 8s, or 8 * 8 * 8. A root is basically the opposite. We're trying to find the number that we multiply by itself a certain number of times to get the number under the radical sign.
 
        
             
        
        
        
Answer:
the sum is 25 not 24?
Step-by-step explanation: