Answer:
idk
Step-by-step explanation:
iidkdisiisididisisisdk
 
        
             
        
        
        
Answer:
2 minutes
Step-by-step explanation:
The front of the train enters the tunnel and travels 1 km before the rear of the train enters the tunnel.  Thus, the total distance traveled by the front of the train is 2 km, and this is covered in a certain number of hours:
Since distance = rate times time, time = distance / rate.  In this particular case we have:
                                               2 km
time = distance / rate = ------------------- = (1/30) hr 
                                            60 km/hr
(1/30) hr converts to 2 minutes, since 1 hr = 60 minutes
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Remember that the range is the set of all y-values. Thus, since the minimum of the function is y=-1, then our range is  . In interval notation, we use brackets to show what's included and parentheses to show what's not included.
. In interval notation, we use brackets to show what's included and parentheses to show what's not included.
 
        
                    
             
        
        
        
Answer:
The line x = 3 is simply a vertical line that passes through every single point where x is equal to 3.
One that is is parallel and passes through (-4, 7) will be in the same format, just with another number.  The given point has an x-coordinate of -4, so the line is:
x = -4