Answer:
True. The graph will shift down if we subtract a number from "b"
Step-by-step explanation:
"b" represents the y-intercept, or how high up on the y axis the graph intersects.
If we don't change anything except for the y-intercept, then the graph should only move up or down.
Because we are decreasing the value of "b" the y intercept will decrease, dragging the graph of y down.
 
        
             
        
        
        
Since the diameter of the cylinder is 10, its radius is half that, or 5, thus
 
 
        
        
        
Answer:
Points apply to the given situation:
(a)The puppy will run into the wall after 5 seconds
(b)The slope is -4 ft per second since the puppy is running at a rate of 4 ft per second.
(c)The y-intercept is 20 ft because the puppy is 20 feet away from the wall.
Step-by-step explanation:
We have given,
A puppy is running at a rate = 4 feet per second
A wall is 20 feet away from puppy. That means initially puppy is 20 feet away from the wall.
So, time taken by puppy to reach the wall = 
i.e. time take by puppy to reach the wall =  = 5 seconds
  Now we write the points that apply to this situation:
(a)The puppy will run into the wall after 5 seconds
(b)The slope is -4 ft per second since the puppy is running at a rate of 4 ft per second. {Since the puppy is moving towards the wall that means horizontal distance is decreasing at a rate of -4 feet per second}
(c)The y-intercept is 20 ft because the puppy is 20 feet away from the wall.
 
        
             
        
        
        
The simplified form of the expression is 
<h3>Simplifying an expression</h3>
From the question, we are to simplify the given expression 
The given expression is 

The expression can be simplified as shown below 





Then, 





Hence, the simplified form of the expression is 
Learn more on Simplifying an expression here: brainly.com/question/2320607
#SPJ1
 
        
             
        
        
        
I think the answer is -20